Finding the Fourth Proportional to 23,159.52, 31,960.25 and 12,549.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,159.52 : 31,960.25 = 12,549.15 : x
2. Step 2: Convert to fraction form
   23,159.52/31,960.25 = 12,549.15/x
3. Step 3: Cross multiply
   23,159.52x = 31,960.25 × 12,549.15
4. Step 4: Simplify right side
   23,159.52x = 401,073,908.54
5. Step 5: Solve for x
   x = 401,073,908.54/23,159.52
6. Step 6: Final answer
   x = 17,317.89