Finding the Fourth Proportional to 131,726,139.42, 181,781,892.42 and 72,992,606.88

Step by Step Solution

1. Step 1: Write the proportion equation
   131,726,139.42 : 181,781,892.42 = 72,992,606.88 : x
2. Step 2: Convert to fraction form
   131,726,139.42/181,781,892.42 = 72,992,606.88/x
3. Step 3: Cross multiply
   131,726,139.42x = 181,781,892.42 × 72,992,606.88
4. Step 4: Simplify right side
   131,726,139.42x = 13,268,734,211,315,510
5. Step 5: Solve for x
   x = 13,268,734,211,315,510/131,726,139.42
6. Step 6: Final answer
   x = 100,729,697.76