Finding the Fourth Proportional to 22,831.99, 31,508.03 and 12,760.43

Step by Step Solution

1. Step 1: Write the proportion equation
   22,831.99 : 31,508.03 = 12,760.43 : x
2. Step 2: Convert to fraction form
   22,831.99/31,508.03 = 12,760.43/x
3. Step 3: Cross multiply
   22,831.99x = 31,508.03 × 12,760.43
4. Step 4: Simplify right side
   22,831.99x = 402,055,885.61
5. Step 5: Solve for x
   x = 402,055,885.61/22,831.99
6. Step 6: Final answer
   x = 17,609.32