Finding the Fourth Proportional to 5,085.89, 7,018.76 and 2,847.32

Step by Step Solution

1. Step 1: Write the proportion equation
   5,085.89 : 7,018.76 = 2,847.32 : x
2. Step 2: Convert to fraction form
   5,085.89/7,018.76 = 2,847.32/x
3. Step 3: Cross multiply
   5,085.89x = 7,018.76 × 2,847.32
4. Step 4: Simplify right side
   5,085.89x = 19,984,627.75
5. Step 5: Solve for x
   x = 19,984,627.75/5,085.89
6. Step 6: Final answer
   x = 3,929.43