Finding the Fourth Proportional to 22,472.43, 31,012.19 and 12,401.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,472.43 : 31,012.19 = 12,401.25 : x
2. Step 2: Convert to fraction form
   22,472.43/31,012.19 = 12,401.25/x
3. Step 3: Cross multiply
   22,472.43x = 31,012.19 × 12,401.25
4. Step 4: Simplify right side
   22,472.43x = 384,589,921.24
5. Step 5: Solve for x
   x = 384,589,921.24/22,472.43
6. Step 6: Final answer
   x = 17,113.86