Finding the Fourth Proportional to 23,158.87, 31,959.35 and 12,548.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,158.87 : 31,959.35 = 12,548.50 : x
2. Step 2: Convert to fraction form
   23,158.87/31,959.35 = 12,548.50/x
3. Step 3: Cross multiply
   23,158.87x = 31,959.35 × 12,548.50
4. Step 4: Simplify right side
   23,158.87x = 401,041,807.89
5. Step 5: Solve for x
   x = 401,041,807.89/23,158.87
6. Step 6: Final answer
   x = 17,316.99