Finding the Fourth Proportional to 5,789.30, 7,986.15 and 3,521.33

Step by Step Solution

1. Step 1: Write the proportion equation
   5,789.30 : 7,986.15 = 3,521.33 : x
2. Step 2: Convert to fraction form
   5,789.30/7,986.15 = 3,521.33/x
3. Step 3: Cross multiply
   5,789.30x = 7,986.15 × 3,521.33
4. Step 4: Simplify right side
   5,789.30x = 28,121,876.52
5. Step 5: Solve for x
   x = 28,121,876.52/5,789.30
6. Step 6: Final answer
   x = 4,857.56