Finding the Fourth Proportional to 22,581,866.34, 31,164,516.18 and 12,792,391.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,581,866.34 : 31,164,516.18 = 12,792,391.02 : x
2. Step 2: Convert to fraction form
   22,581,866.34/31,164,516.18 = 12,792,391.02/x
3. Step 3: Cross multiply
   22,581,866.34x = 31,164,516.18 × 12,792,391.02
4. Step 4: Simplify right side
   22,581,866.34x = 398,668,676,923,676.69
5. Step 5: Solve for x
   x = 398,668,676,923,676.69/22,581,866.34
6. Step 6: Final answer
   x = 17,654,372.36