Finding the Fourth Proportional to 8,549.16, 12,806.72 and 5,618.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,549.16 : 12,806.72 = 5,618.58 : x
2. Step 2: Convert to fraction form
   8,549.16/12,806.72 = 5,618.58/x
3. Step 3: Cross multiply
   8,549.16x = 12,806.72 × 5,618.58
4. Step 4: Simplify right side
   8,549.16x = 71,955,580.86
5. Step 5: Solve for x
   x = 71,955,580.86/8,549.16
6. Step 6: Final answer
   x = 8,416.68