Finding the Fourth Proportional to 102,551,512.86, 141,521,092.56 and 56,141,766.78

Step by Step Solution

1. Step 1: Write the proportion equation
   102,551,512.86 : 141,521,092.56 = 56,141,766.78 : x
2. Step 2: Convert to fraction form
   102,551,512.86/141,521,092.56 = 56,141,766.78/x
3. Step 3: Cross multiply
   102,551,512.86x = 141,521,092.56 × 56,141,766.78
4. Step 4: Simplify right side
   102,551,512.86x = 7,945,244,173,062,332
5. Step 5: Solve for x
   x = 7,945,244,173,062,332/102,551,512.86
6. Step 6: Final answer
   x = 77,475,640.79