Finding the Fourth Proportional to 22,468.62, 31,006.50 and 12,397.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,468.62 : 31,006.50 = 12,397.15 : x
2. Step 2: Convert to fraction form
   22,468.62/31,006.50 = 12,397.15/x
3. Step 3: Cross multiply
   22,468.62x = 31,006.50 × 12,397.15
4. Step 4: Simplify right side
   22,468.62x = 384,392,231.48
5. Step 5: Solve for x
   x = 384,392,231.48/22,468.62
6. Step 6: Final answer
   x = 17,107.96