Finding the Fourth Proportional to 23,141.57, 31,935.39 and 12,531.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,141.57 : 31,935.39 = 12,531.18 : x
2. Step 2: Convert to fraction form
   23,141.57/31,935.39 = 12,531.18/x
3. Step 3: Cross multiply
   23,141.57x = 31,935.39 × 12,531.18
4. Step 4: Simplify right side
   23,141.57x = 400,188,057.80
5. Step 5: Solve for x
   x = 400,188,057.80/23,141.57
6. Step 6: Final answer
   x = 17,293.04