Finding the Fourth Proportional to 5,616.81, 8,414.42 and 3,144.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,616.81 : 8,414.42 = 3,144.15 : x
2. Step 2: Convert to fraction form
   5,616.81/8,414.42 = 3,144.15/x
3. Step 3: Cross multiply
   5,616.81x = 8,414.42 × 3,144.15
4. Step 4: Simplify right side
   5,616.81x = 26,456,182.92
5. Step 5: Solve for x
   x = 26,456,182.92/5,616.81
6. Step 6: Final answer
   x = 4,710.18