Finding the Fourth Proportional to 22,472.71, 31,012.31 and 12,401.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,472.71 : 31,012.31 = 12,401.15 : x
2. Step 2: Convert to fraction form
   22,472.71/31,012.31 = 12,401.15/x
3. Step 3: Cross multiply
   22,472.71x = 31,012.31 × 12,401.15
4. Step 4: Simplify right side
   22,472.71x = 384,588,184.10
5. Step 5: Solve for x
   x = 384,588,184.10/22,472.71
6. Step 6: Final answer
   x = 17,113.57