Finding the Fourth Proportional to 17,475.55, 24,139.34 and 12,947.43

Step by Step Solution

1. Step 1: Write the proportion equation
   17,475.55 : 24,139.34 = 12,947.43 : x
2. Step 2: Convert to fraction form
   17,475.55/24,139.34 = 12,947.43/x
3. Step 3: Cross multiply
   17,475.55x = 24,139.34 × 12,947.43
4. Step 4: Simplify right side
   17,475.55x = 312,542,414.90
5. Step 5: Solve for x
   x = 312,542,414.90/17,475.55
6. Step 6: Final answer
   x = 17,884.55