Finding the Fourth Proportional to 16,524.29, 24,789.15 and 5,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,524.29 : 24,789.15 = 5,428.50 : x
2. Step 2: Convert to fraction form
   16,524.29/24,789.15 = 5,428.50/x
3. Step 3: Cross multiply
   16,524.29x = 24,789.15 × 5,428.50
4. Step 4: Simplify right side
   16,524.29x = 134,567,900.78
5. Step 5: Solve for x
   x = 134,567,900.78/16,524.29
6. Step 6: Final answer
   x = 8,143.64