Finding the Fourth Proportional to 6,479.75, 8,939.75 and 3,826.59

Step by Step Solution

1. Step 1: Write the proportion equation
   6,479.75 : 8,939.75 = 3,826.59 : x
2. Step 2: Convert to fraction form
   6,479.75/8,939.75 = 3,826.59/x
3. Step 3: Cross multiply
   6,479.75x = 8,939.75 × 3,826.59
4. Step 4: Simplify right side
   6,479.75x = 34,208,738.82
5. Step 5: Solve for x
   x = 34,208,738.82/6,479.75
6. Step 6: Final answer
   x = 5,279.33