Finding the Fourth Proportional to 16,389.72, 24,571.02 and 6,389.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389.72 : 24,571.02 = 6,389.52 : x
2. Step 2: Convert to fraction form
   16,389.72/24,571.02 = 6,389.52/x
3. Step 3: Cross multiply
   16,389.72x = 24,571.02 × 6,389.52
4. Step 4: Simplify right side
   16,389.72x = 156,997,023.71
5. Step 5: Solve for x
   x = 156,997,023.71/16,389.72
6. Step 6: Final answer
   x = 9,578.99