Finding the Fourth Proportional to 23,143.28, 31,937.88 and 12,533

Step by Step Solution

1. Step 1: Write the proportion equation
   23,143.28 : 31,937.88 = 12,533 : x
2. Step 2: Convert to fraction form
   23,143.28/31,937.88 = 12,533/x
3. Step 3: Cross multiply
   23,143.28x = 31,937.88 × 12,533
4. Step 4: Simplify right side
   23,143.28x = 400,277,450.04
5. Step 5: Solve for x
   x = 400,277,450.04/23,143.28
6. Step 6: Final answer
   x = 17,295.62