Finding the Fourth Proportional to 131,664,770.88, 181,697,380.38 and 72,931,219.56

Step by Step Solution

1. Step 1: Write the proportion equation
   131,664,770.88 : 181,697,380.38 = 72,931,219.56 : x
2. Step 2: Convert to fraction form
   131,664,770.88/181,697,380.38 = 72,931,219.56/x
3. Step 3: Cross multiply
   131,664,770.88x = 181,697,380.38 × 72,931,219.56
4. Step 4: Simplify right side
   131,664,770.88x = 13,251,411,541,970,616
5. Step 5: Solve for x
   x = 13,251,411,541,970,616/131,664,770.88
6. Step 6: Final answer
   x = 100,645,081.09