Finding the Fourth Proportional to 5,085.32, 7,017.91 and 2,847.29

Step by Step Solution

1. Step 1: Write the proportion equation
   5,085.32 : 7,017.91 = 2,847.29 : x
2. Step 2: Convert to fraction form
   5,085.32/7,017.91 = 2,847.29/x
3. Step 3: Cross multiply
   5,085.32x = 7,017.91 × 2,847.29
4. Step 4: Simplify right side
   5,085.32x = 19,981,982.76
5. Step 5: Solve for x
   x = 19,981,982.76/5,085.32
6. Step 6: Final answer
   x = 3,929.35