Finding the Fourth Proportional to 9,320.96, 12,861.78 and 5,544.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,320.96 : 12,861.78 = 5,544.20 : x
2. Step 2: Convert to fraction form
   9,320.96/12,861.78 = 5,544.20/x
3. Step 3: Cross multiply
   9,320.96x = 12,861.78 × 5,544.20
4. Step 4: Simplify right side
   9,320.96x = 71,308,280.68
5. Step 5: Solve for x
   x = 71,308,280.68/9,320.96
6. Step 6: Final answer
   x = 7,650.32