Finding the Fourth Proportional to 8,549.16, 12,807.12 and 5,618.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,549.16 : 12,807.12 = 5,618.56 : x
2. Step 2: Convert to fraction form
   8,549.16/12,807.12 = 5,618.56/x
3. Step 3: Cross multiply
   8,549.16x = 12,807.12 × 5,618.56
4. Step 4: Simplify right side
   8,549.16x = 71,957,572.15
5. Step 5: Solve for x
   x = 71,957,572.15/8,549.16
6. Step 6: Final answer
   x = 8,416.92