Finding the Fourth Proportional to 6,315.31, 8,714.12 and 3,662.20

Step by Step Solution

1. Step 1: Write the proportion equation
   6,315.31 : 8,714.12 = 3,662.20 : x
2. Step 2: Convert to fraction form
   6,315.31/8,714.12 = 3,662.20/x
3. Step 3: Cross multiply
   6,315.31x = 8,714.12 × 3,662.20
4. Step 4: Simplify right side
   6,315.31x = 31,912,831.95
5. Step 5: Solve for x
   x = 31,912,831.95/6,315.31
6. Step 6: Final answer
   x = 5,053.25