Finding the Fourth Proportional to 23,158.69, 31,959.02 and 12,548.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,158.69 : 31,959.02 = 12,548.32 : x
2. Step 2: Convert to fraction form
   23,158.69/31,959.02 = 12,548.32/x
3. Step 3: Cross multiply
   23,158.69x = 31,959.02 × 12,548.32
4. Step 4: Simplify right side
   23,158.69x = 401,031,961.32
5. Step 5: Solve for x
   x = 401,031,961.32/23,158.69
6. Step 6: Final answer
   x = 17,316.70