Finding the Fourth Proportional to 23,144.38, 31,939.20 and 12,534.03

Step by Step Solution

1. Step 1: Write the proportion equation
   23,144.38 : 31,939.20 = 12,534.03 : x
2. Step 2: Convert to fraction form
   23,144.38/31,939.20 = 12,534.03/x
3. Step 3: Cross multiply
   23,144.38x = 31,939.20 × 12,534.03
4. Step 4: Simplify right side
   23,144.38x = 400,326,890.98
5. Step 5: Solve for x
   x = 400,326,890.98/23,144.38
6. Step 6: Final answer
   x = 17,296.94