Finding the Fourth Proportional to 23,150.75, 31,948.04 and 12,540.38

Step by Step Solution

1. Step 1: Write the proportion equation
   23,150.75 : 31,948.04 = 12,540.38 : x
2. Step 2: Convert to fraction form
   23,150.75/31,948.04 = 12,540.38/x
3. Step 3: Cross multiply
   23,150.75x = 31,948.04 × 12,540.38
4. Step 4: Simplify right side
   23,150.75x = 400,640,579.02
5. Step 5: Solve for x
   x = 400,640,579.02/23,150.75
6. Step 6: Final answer
   x = 17,305.73