Finding the Fourth Proportional to 9,879.52, 13,632.96 and 5,688.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,879.52 : 13,632.96 = 5,688.04 : x
2. Step 2: Convert to fraction form
   9,879.52/13,632.96 = 5,688.04/x
3. Step 3: Cross multiply
   9,879.52x = 13,632.96 × 5,688.04
4. Step 4: Simplify right side
   9,879.52x = 77,544,821.80
5. Step 5: Solve for x
   x = 77,544,821.80/9,879.52
6. Step 6: Final answer
   x = 7,849.05