Finding the Fourth Proportional to 23,142.50, 31,936.60 and 12,532.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,142.50 : 31,936.60 = 12,532.10 : x
2. Step 2: Convert to fraction form
   23,142.50/31,936.60 = 12,532.10/x
3. Step 3: Cross multiply
   23,142.50x = 31,936.60 × 12,532.10
4. Step 4: Simplify right side
   23,142.50x = 400,232,473.85
5. Step 5: Solve for x
   x = 400,232,473.85/23,142.50
6. Step 6: Final answer
   x = 17,294.27