$77.4 billion more than $75 billion according to Bloomberg Warren Buffett 18 percent stake $77 billion fortune $US75 billion Warren Buffett $77.2 billion $77 billion fortune Warren Buffett Warren Buffett Warren Buffett Bloomberg Billionaires Index. fourth-richest person in the world $91.7 billion according to Bloomberg more than $75 billion $75 billion Warren Buffett $77.4 billion $91.7 billion 18 percent stake Warren Buffett $77.2 billion fourth-richest person in the world Warren Buffet Warren Buffett Warren Buffett fourth-richest person in the world 77,4 miljard dollar Warren Buffett, USA $92.1 billion $77.4 billion $77.2 billion $91.7 billion $77.2 billion $77.2 billion $77.4 billion $77.2 billion fourth-richest person in the world