Finding the Fourth Proportional to 22,581,821.52, 31,156,048.25 and 12,790,710

Step by Step Solution

1. Step 1: Write the proportion equation
   22,581,821.52 : 31,156,048.25 = 12,790,710 : x
2. Step 2: Convert to fraction form
   22,581,821.52/31,156,048.25 = 12,790,710/x
3. Step 3: Cross multiply
   22,581,821.52x = 31,156,048.25 × 12,790,710
4. Step 4: Simplify right side
   22,581,821.52x = 398,507,977,911,757.50
5. Step 5: Solve for x
   x = 398,507,977,911,757.50/22,581,821.52
6. Step 6: Final answer
   x = 17,647,291.10