Finding the Fourth Proportional to 4,016.18, 5,542.20 and 2,223.78

Step by Step Solution

1. Step 1: Write the proportion equation
   4,016.18 : 5,542.20 = 2,223.78 : x
2. Step 2: Convert to fraction form
   4,016.18/5,542.20 = 2,223.78/x
3. Step 3: Cross multiply
   4,016.18x = 5,542.20 × 2,223.78
4. Step 4: Simplify right side
   4,016.18x = 12,324,633.52
5. Step 5: Solve for x
   x = 12,324,633.52/4,016.18
6. Step 6: Final answer
   x = 3,068.75