Finding the Fourth Proportional to 22,581,820.52, 31,156,046.87 and 12,790,709

Step by Step Solution

1. Step 1: Write the proportion equation
   22,581,820.52 : 31,156,046.87 = 12,790,709 : x
2. Step 2: Convert to fraction form
   22,581,820.52/31,156,046.87 = 12,790,709/x
3. Step 3: Cross multiply
   22,581,820.52x = 31,156,046.87 × 12,790,709
4. Step 4: Simplify right side
   22,581,820.52x = 398,507,929,104,530.81
5. Step 5: Solve for x
   x = 398,507,929,104,530.81/22,581,820.52
6. Step 6: Final answer
   x = 17,647,289.72