Finding the Fourth Proportional to 23,158.96, 31,959.47 and 12,548.61

Step by Step Solution

1. Step 1: Write the proportion equation
   23,158.96 : 31,959.47 = 12,548.61 : x
2. Step 2: Convert to fraction form
   23,158.96/31,959.47 = 12,548.61/x
3. Step 3: Cross multiply
   23,158.96x = 31,959.47 × 12,548.61
4. Step 4: Simplify right side
   23,158.96x = 401,046,956.21
5. Step 5: Solve for x
   x = 401,046,956.21/23,158.96
6. Step 6: Final answer
   x = 17,317.14