Finding the Fourth Proportional to 131,598,677.63, 181,608,945.90 and 72,062,474.15

Step by Step Solution

1. Step 1: Write the proportion equation
   131,598,677.63 : 181,608,945.90 = 72,062,474.15 : x
2. Step 2: Convert to fraction form
   131,598,677.63/181,608,945.90 = 72,062,474.15/x
3. Step 3: Cross multiply
   131,598,677.63x = 181,608,945.90 × 72,062,474.15
4. Step 4: Simplify right side
   131,598,677.63x = 13,087,189,969,327,500
5. Step 5: Solve for x
   x = 13,087,189,969,327,500/131,598,677.63
6. Step 6: Final answer
   x = 99,447,731.58