Finding the Fourth Proportional to 23,158.43, 31,958.72 and 12,548.04

Step by Step Solution

1. Step 1: Write the proportion equation
   23,158.43 : 31,958.72 = 12,548.04 : x
2. Step 2: Convert to fraction form
   23,158.43/31,958.72 = 12,548.04/x
3. Step 3: Cross multiply
   23,158.43x = 31,958.72 × 12,548.04
4. Step 4: Simplify right side
   23,158.43x = 401,019,296.91
5. Step 5: Solve for x
   x = 401,019,296.91/23,158.43
6. Step 6: Final answer
   x = 17,316.34