Finding the Fourth Proportional to 22,744.17, 31,386.12 and 12,672.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,744.17 : 31,386.12 = 12,672.09 : x
2. Step 2: Convert to fraction form
   22,744.17/31,386.12 = 12,672.09/x
3. Step 3: Cross multiply
   22,744.17x = 31,386.12 × 12,672.09
4. Step 4: Simplify right side
   22,744.17x = 397,727,737.39
5. Step 5: Solve for x
   x = 397,727,737.39/22,744.17
6. Step 6: Final answer
   x = 17,487.02