Finding the Fourth Proportional to 16,218.42, 24,330.42 and 5,124.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,218.42 : 24,330.42 = 5,124.89 : x
2. Step 2: Convert to fraction form
   16,218.42/24,330.42 = 5,124.89/x
3. Step 3: Cross multiply
   16,218.42x = 24,330.42 × 5,124.89
4. Step 4: Simplify right side
   16,218.42x = 124,690,604.50
5. Step 5: Solve for x
   x = 124,690,604.50/16,218.42
6. Step 6: Final answer
   x = 7,688.21