Finding the Fourth Proportional to 72,309,100.74, 99,762,285.15 and 40,942,861.62

Step by Step Solution

1. Step 1: Write the proportion equation
   72,309,100.74 : 99,762,285.15 = 40,942,861.62 : x
2. Step 2: Convert to fraction form
   72,309,100.74/99,762,285.15 = 40,942,861.62/x
3. Step 3: Cross multiply
   72,309,100.74x = 99,762,285.15 × 40,942,861.62
4. Step 4: Simplify right side
   72,309,100.74x = 4,084,553,435,791,431
5. Step 5: Solve for x
   x = 4,084,553,435,791,431/72,309,100.74
6. Step 6: Final answer
   x = 56,487,404.68