Finding the Fourth Proportional to 16,459.89, 24,658.83 and 8,130.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,459.89 : 24,658.83 = 8,130.15 : x
2. Step 2: Convert to fraction form
   16,459.89/24,658.83 = 8,130.15/x
3. Step 3: Cross multiply
   16,459.89x = 24,658.83 × 8,130.15
4. Step 4: Simplify right side
   16,459.89x = 200,479,986.72
5. Step 5: Solve for x
   x = 200,479,986.72/16,459.89
6. Step 6: Final answer
   x = 12,179.91