Finding the Fourth Proportional to 4,104.28, 6,143.69 and 3,317.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,104.28 : 6,143.69 = 3,317.72 : x
2. Step 2: Convert to fraction form
   4,104.28/6,143.69 = 3,317.72/x
3. Step 3: Cross multiply
   4,104.28x = 6,143.69 × 3,317.72
4. Step 4: Simplify right side
   4,104.28x = 20,383,026.60
5. Step 5: Solve for x
   x = 20,383,026.60/4,104.28
6. Step 6: Final answer
   x = 4,966.29