Finding the Fourth Proportional to 22,470.27, 31,008.95 and 12,398.71

Step by Step Solution

1. Step 1: Write the proportion equation
   22,470.27 : 31,008.95 = 12,398.71 : x
2. Step 2: Convert to fraction form
   22,470.27/31,008.95 = 12,398.71/x
3. Step 3: Cross multiply
   22,470.27x = 31,008.95 × 12,398.71
4. Step 4: Simplify right side
   22,470.27x = 384,470,885.43
5. Step 5: Solve for x
   x = 384,470,885.43/22,470.27
6. Step 6: Final answer
   x = 17,110.20