Finding the Fourth Proportional to 23,143.12, 31,937.46 and 12,532.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,143.12 : 31,937.46 = 12,532.72 : x
2. Step 2: Convert to fraction form
   23,143.12/31,937.46 = 12,532.72/x
3. Step 3: Cross multiply
   23,143.12x = 31,937.46 × 12,532.72
4. Step 4: Simplify right side
   23,143.12x = 400,263,243.69
5. Step 5: Solve for x
   x = 400,263,243.69/23,143.12
6. Step 6: Final answer
   x = 17,295.13