Finding the Fourth Proportional to 99,550,053,962.56, 137,391,656,755.94 and 65,284,588,278.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,550,053,962.56 : 137,391,656,755.94 = 65,284,588,278.50 : x
2. Step 2: Convert to fraction form
   99,550,053,962.56/137,391,656,755.94 = 65,284,588,278.50/x
3. Step 3: Cross multiply
   99,550,053,962.56x = 137,391,656,755.94 × 65,284,588,278.50
4. Step 4: Simplify right side
   99,550,053,962.56x = 8,969,557,744,212,535,934,976
5. Step 5: Solve for x
   x = 8,969,557,744,212,535,934,976/99,550,053,962.56
6. Step 6: Final answer
   x = 90,100,983,245.93