Finding the Fourth Proportional to 23,158.88, 31,959.24 and 12,548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,158.88 : 31,959.24 = 12,548.72 : x
2. Step 2: Convert to fraction form
   23,158.88/31,959.24 = 12,548.72/x
3. Step 3: Cross multiply
   23,158.88x = 31,959.24 × 12,548.72
4. Step 4: Simplify right side
   23,158.88x = 401,047,554.17
5. Step 5: Solve for x
   x = 401,047,554.17/23,158.88
6. Step 6: Final answer
   x = 17,317.23