Finding the Fourth Proportional to 5,085.43, 7,018.34 and 2,847.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,085.43 : 7,018.34 = 2,847.27 : x
2. Step 2: Convert to fraction form
   5,085.43/7,018.34 = 2,847.27/x
3. Step 3: Cross multiply
   5,085.43x = 7,018.34 × 2,847.27
4. Step 4: Simplify right side
   5,085.43x = 19,983,108.93
5. Step 5: Solve for x
   x = 19,983,108.93/5,085.43
6. Step 6: Final answer
   x = 3,929.48