Finding the Fourth Proportional to 6,505.92, 8,978.04 and 3,521.75

Step by Step Solution

1. Step 1: Write the proportion equation
   6,505.92 : 8,978.04 = 3,521.75 : x
2. Step 2: Convert to fraction form
   6,505.92/8,978.04 = 3,521.75/x
3. Step 3: Cross multiply
   6,505.92x = 8,978.04 × 3,521.75
4. Step 4: Simplify right side
   6,505.92x = 31,618,367.48
5. Step 5: Solve for x
   x = 31,618,367.48/6,505.92
6. Step 6: Final answer
   x = 4,859.94