The SSZ (Sea Scout Zero) non-rigid airships or "blimps" were developed in United Kingdom during World War I from the earlier SS ("Sea Scout") class.
 The main role of these craft was to escort convoys and scout or search for German U-Boats.
Asset poverty is an economic and social condition that is more persistent and prevalent than income poverty.
 It can be defined as a household’s inability to access wealth resources that are sufficient to provide for basic needs for a period of three months.
 Basic needs refer to the minimum standards for consumption and acceptable needs.
 Wealth resources consist of home ownership, other real estate (second home, rented properties, etc.), net value of farm and business assets, stocks, checking and savings accounts, and other savings (money in savings bonds, life insurance policy cash values, etc.).
 Wealth is measured in three forms: net worth, net worth minus home equity, and liquid assets.
 Net worth consists of all the aspects mentioned above.
 Net worth minus home equity is the same except it does not include home ownership in asset calculations.
 Liquid assets are resources that are readily available such as cash, checking and savings accounts, stocks, and other sources of savings.
 There are two types of assets: tangible and intangible.
 Tangible assets most closely resemble liquid assets in that they include stocks, bonds, property, natural resources, and hard assets not in the form of real estate.
 Intangible assets are simply the access to credit, social capital, cultural capital, political capital, and human capital.
Alisher Burkhanovich Usmanov (Russian: Алише́р Бурха́нович Усма́нов ; Uzbek: "Alisher Usmonov" ; born 9 September 1953) is an Uzbek-born Russian business magnate.
 As reported by "Forbes", in 2017, Alisher Usmanov has an estimated net worth of $15.1 billion.
 The December 2013 Bloomberg Billionaires Index reported an estimated net worth of $19.6 billion, making him the 37th richest person in the world.
 In May 2014, "The Sunday Times" listed him as the second richest person in the UK with an estimated fortune of £10.65bn.
Edward Perry "Ed" Bass (born (1945--) 10, 1945 ) is an American businessman, financier, philanthropist, and environmentalist who lives in Fort Worth, Texas.
 He financed the Biosphere 2 project, an artificial closed ecological system, which was built between 1987 and 1991.
 He is the chairman of Fine Line, an investment and venture-capital management firm in Fort Worth, and president of the board of directors of the Sid W. Richardson Foundation, a philanthropic organization.
 He was listed as #239 on the Forbes 400 list of wealthiest Americans in 2012, with an estimated net worth of $2 billion.
Xu Ming (; April 1971 – 4 December 2015) was a Chinese entrepreneur and onetime billionaire.
 He was the founder of the conglomerate Dalian Shide Group, and the chairman of Dalian Shide F.C., China's top football club in the 2000s.
 In 2005 "Forbes" ranked him the eighth-richest person in China, with an estimated net worth of US$1.05 billion, but his net worth declined to $690 million in 2011.
 The 2013 Hurun Report estimated his wealth to be around US$490 million, ranking 676th in China.
Zygmunt Solorz-Żak (born Zygmunt Józef Krok, August 4, 1956) is a Polish businessman.
 He is the second richest person in Poland and has repeatedly appeared on "Forbes"<nowiki>'</nowiki> ranking of the world's billionaires, with an estimated net worth around €5.77 billion.
 On the "Forbes" 2016 list of the world's billionaires, he was ranked #688 with a net worth of US$2.5 billion.
Robert Kuok Hock Nien (; born 6 October 1923), is a Malaysian Chinese business magnate and investor.
 According to "Forbes", his net worth is estimated at $12.2 billion on July 2017, making him the richest person in Malaysia and second richest in Southeast Asia after Dhanin Chearavanont of Thailand, according to Forbes List of World Billionaires 2013 which Robert Kuok was placed 76th.
 As of December 2012, according to the Bloomberg Billionaires Index, Kuok has an estimated net worth of $17.3 billion, making him the 40th richest person in the world.
The William I. Koch International Sea Scout Cup is a biannual Sailing Regatta put on by Sea Scouting (Boy Scouts of America).
 The Event was founded by Bill Koch in 2002 in order to allow Sea Scouts from around the world to compete.
 The original National Sea Scout Sailing Championship began in the 1930s but went dormant when Sea Scouts left the program to serve in World War II.
William Ingraham Koch ( ; born May 3, 1940) is an American businessman, sailor, and collector.
 His boat was the winner of the America's Cup in 1992. "
Forbes" estimated Koch's net worth at $4 billion in 2012 from oil and other investments.
The following is a list of the richest and wealthiest Pakistani entrepreneurs sorted by order of their declared or estimated net worth.
 It is extremely difficult to verify the exact figures of the net worth of some of these individuals because in Pakistan the large business conglomerates are often and typically owned jointly by sons/brothers/close relatives who collectively hold on to the cash and assets, so the financial figures usually cannot be linked to the name of one single individual only.

Question: The William I. Koch International Sea Scout Cup was founded by a businessman with what estimated net worth?
Answer: $4 billion