Finding the Fourth Proportional to 72,731,562.81, 109,094,686.98 and 21,612,253.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,731,562.81 : 109,094,686.98 = 21,612,253.02 : x
2. Step 2: Convert to fraction form
   72,731,562.81/109,094,686.98 = 21,612,253.02/x
3. Step 3: Cross multiply
   72,731,562.81x = 109,094,686.98 × 21,612,253.02
4. Step 4: Simplify right side
   72,731,562.81x = 2,357,781,978,149,459.50
5. Step 5: Solve for x
   x = 2,357,781,978,149,459.50/72,731,562.81
6. Step 6: Final answer
   x = 32,417,589.93