Finding the Fourth Proportional to 23,144.88, 31,939.92 and 12,534.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,144.88 : 31,939.92 = 12,534.72 : x
2. Step 2: Convert to fraction form
   23,144.88/31,939.92 = 12,534.72/x
3. Step 3: Cross multiply
   23,144.88x = 31,939.92 × 12,534.72
4. Step 4: Simplify right side
   23,144.88x = 400,357,954.02
5. Step 5: Solve for x
   x = 400,357,954.02/23,144.88
6. Step 6: Final answer
   x = 17,297.91