Finding the Fourth Proportional to 6,311.86, 8,710.17 and 3,479.14

Step by Step Solution

1. Step 1: Write the proportion equation
   6,311.86 : 8,710.17 = 3,479.14 : x
2. Step 2: Convert to fraction form
   6,311.86/8,710.17 = 3,479.14/x
3. Step 3: Cross multiply
   6,311.86x = 8,710.17 × 3,479.14
4. Step 4: Simplify right side
   6,311.86x = 30,303,900.85
5. Step 5: Solve for x
   x = 30,303,900.85/6,311.86
6. Step 6: Final answer
   x = 4,801.10