Finding the Fourth Proportional to 22,468.61, 31,007.27 and 12,397.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,468.61 : 31,007.27 = 12,397.18 : x
2. Step 2: Convert to fraction form
   22,468.61/31,007.27 = 12,397.18/x
3. Step 3: Cross multiply
   22,468.61x = 31,007.27 × 12,397.18
4. Step 4: Simplify right side
   22,468.61x = 384,402,490.48
5. Step 5: Solve for x
   x = 384,402,490.48/22,468.61
6. Step 6: Final answer
   x = 17,108.43