Finding the Fourth Proportional to 16,337.72, 24,458.98 and 12,139.58

Step by Step Solution

1. Step 1: Write the proportion equation
   16,337.72 : 24,458.98 = 12,139.58 : x
2. Step 2: Convert to fraction form
   16,337.72/24,458.98 = 12,139.58/x
3. Step 3: Cross multiply
   16,337.72x = 24,458.98 × 12,139.58
4. Step 4: Simplify right side
   16,337.72x = 296,921,626.39
5. Step 5: Solve for x
   x = 296,921,626.39/16,337.72
6. Step 6: Final answer
   x = 18,174.00