Finding the Fourth Proportional to 16,485.80, 24,711.27 and 5,389.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,485.80 : 24,711.27 = 5,389.52 : x
2. Step 2: Convert to fraction form
   16,485.80/24,711.27 = 5,389.52/x
3. Step 3: Cross multiply
   16,485.80x = 24,711.27 × 5,389.52
4. Step 4: Simplify right side
   16,485.80x = 133,181,883.89
5. Step 5: Solve for x
   x = 133,181,883.89/16,485.80
6. Step 6: Final answer
   x = 8,078.58