Finding the Fourth Proportional to 6,314.78, 8,713.50 and 3,520.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,314.78 : 8,713.50 = 3,520.28 : x
2. Step 2: Convert to fraction form
   6,314.78/8,713.50 = 3,520.28/x
3. Step 3: Cross multiply
   6,314.78x = 8,713.50 × 3,520.28
4. Step 4: Simplify right side
   6,314.78x = 30,673,959.78
5. Step 5: Solve for x
   x = 30,673,959.78/6,314.78
6. Step 6: Final answer
   x = 4,857.49