Finding the Fourth Proportional to 23,141.52, 31,935.30 and 12,531.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,141.52 : 31,935.30 = 12,531.15 : x
2. Step 2: Convert to fraction form
   23,141.52/31,935.30 = 12,531.15/x
3. Step 3: Cross multiply
   23,141.52x = 31,935.30 × 12,531.15
4. Step 4: Simplify right side
   23,141.52x = 400,186,034.60
5. Step 5: Solve for x
   x = 400,186,034.60/23,141.52
6. Step 6: Final answer
   x = 17,292.99