Finding the Fourth Proportional to 22,472.62, 31,012.01 and 12,401.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,472.62 : 31,012.01 = 12,401.15 : x
2. Step 2: Convert to fraction form
   22,472.62/31,012.01 = 12,401.15/x
3. Step 3: Cross multiply
   22,472.62x = 31,012.01 × 12,401.15
4. Step 4: Simplify right side
   22,472.62x = 384,584,525.81
5. Step 5: Solve for x
   x = 384,584,525.81/22,472.62
6. Step 6: Final answer
   x = 17,113.47