Give the step-by-step reasoning process and then the final answer. Haylee has 3 dozen guppies in her aquarium. Jose has half as many guppies as Haylee in his tank. Charliz has one-third of what Jose has in his tank. Nicolai has 4 times as many guppies as Charliz in his pond. How many guppies do the four friends have altogether?
Haylee has 3 x 12 = 36 guppies. Jose has 36 / 2 = 18 guppies. Charliz has 18 / 3 = 6 guppies. Nicolai has 6 x 4 = 24 guppies. Altogether, the four friends have 36 + 18 + 6 + 24 = 84 guppies.
The final answer: 84.