Finding the Fourth Proportional to 6,258.29, 8,634.78 and 3,739.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,258.29 : 8,634.78 = 3,739.31 : x
2. Step 2: Convert to fraction form
   6,258.29/8,634.78 = 3,739.31/x
3. Step 3: Cross multiply
   6,258.29x = 8,634.78 × 3,739.31
4. Step 4: Simplify right side
   6,258.29x = 32,288,119.20
5. Step 5: Solve for x
   x = 32,288,119.20/6,258.29
6. Step 6: Final answer
   x = 5,159.26