Finding the Fourth Proportional to 22,685.82, 31,306.46 and 12,614.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,685.82 : 31,306.46 = 12,614.15 : x
2. Step 2: Convert to fraction form
   22,685.82/31,306.46 = 12,614.15/x
3. Step 3: Cross multiply
   22,685.82x = 31,306.46 × 12,614.15
4. Step 4: Simplify right side
   22,685.82x = 394,904,382.41
5. Step 5: Solve for x
   x = 394,904,382.41/22,685.82
6. Step 6: Final answer
   x = 17,407.54