Finding the Fourth Proportional to 101,331,854.96, 139,850,910.59 and 56,680,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,331,854.96 : 139,850,910.59 = 56,680,308.50 : x
2. Step 2: Convert to fraction form
   101,331,854.96/139,850,910.59 = 56,680,308.50/x
3. Step 3: Cross multiply
   101,331,854.96x = 139,850,910.59 × 56,680,308.50
4. Step 4: Simplify right side
   101,331,854.96x = 7,926,792,755,264,461
5. Step 5: Solve for x
   x = 7,926,792,755,264,461/101,331,854.96
6. Step 6: Final answer
   x = 78,226,069.77