Finding the Fourth Proportional to 131,106,687.50, 180,927,201.42 and 72,369,337.30

Step by Step Solution

1. Step 1: Write the proportion equation
   131,106,687.50 : 180,927,201.42 = 72,369,337.30 : x
2. Step 2: Convert to fraction form
   131,106,687.50/180,927,201.42 = 72,369,337.30/x
3. Step 3: Cross multiply
   131,106,687.50x = 180,927,201.42 × 72,369,337.30
4. Step 4: Simplify right side
   131,106,687.50x = 13,093,581,665,856,700
5. Step 5: Solve for x
   x = 13,093,581,665,856,700/131,106,687.50
6. Step 6: Final answer
   x = 99,869,670.38