Finding the Fourth Proportional to 4,183.31, 6,238.41 and 3,665.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,183.31 : 6,238.41 = 3,665.72 : x
2. Step 2: Convert to fraction form
   4,183.31/6,238.41 = 3,665.72/x
3. Step 3: Cross multiply
   4,183.31x = 6,238.41 × 3,665.72
4. Step 4: Simplify right side
   4,183.31x = 22,868,264.31
5. Step 5: Solve for x
   x = 22,868,264.31/4,183.31
6. Step 6: Final answer
   x = 5,466.55