Finding the Fourth Proportional to 5,709.12, 8,565.48 and 3,514.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,709.12 : 8,565.48 = 3,514.80 : x
2. Step 2: Convert to fraction form
   5,709.12/8,565.48 = 3,514.80/x
3. Step 3: Cross multiply
   5,709.12x = 8,565.48 × 3,514.80
4. Step 4: Simplify right side
   5,709.12x = 30,105,949.10
5. Step 5: Solve for x
   x = 30,105,949.10/5,709.12
6. Step 6: Final answer
   x = 5,273.31