Finding the Fourth Proportional to 5,085.32, 7,017.77 and 2,847.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,085.32 : 7,017.77 = 2,847.22 : x
2. Step 2: Convert to fraction form
   5,085.32/7,017.77 = 2,847.22/x
3. Step 3: Cross multiply
   5,085.32x = 7,017.77 × 2,847.22
4. Step 4: Simplify right side
   5,085.32x = 19,981,124.67
5. Step 5: Solve for x
   x = 19,981,124.67/5,085.32
6. Step 6: Final answer
   x = 3,929.18