Finding the Fourth Proportional to 23,149.38, 31,945.92 and 12,538.38

Step by Step Solution

1. Step 1: Write the proportion equation
   23,149.38 : 31,945.92 = 12,538.38 : x
2. Step 2: Convert to fraction form
   23,149.38/31,945.92 = 12,538.38/x
3. Step 3: Cross multiply
   23,149.38x = 31,945.92 × 12,538.38
4. Step 4: Simplify right side
   23,149.38x = 400,550,084.41
5. Step 5: Solve for x
   x = 400,550,084.41/23,149.38
6. Step 6: Final answer
   x = 17,302.84