Finding the Fourth Proportional to 7,085.28, 10,627.68 and 2,922.18

Step by Step Solution

1. Step 1: Write the proportion equation
   7,085.28 : 10,627.68 = 2,922.18 : x
2. Step 2: Convert to fraction form
   7,085.28/10,627.68 = 2,922.18/x
3. Step 3: Cross multiply
   7,085.28x = 10,627.68 × 2,922.18
4. Step 4: Simplify right side
   7,085.28x = 31,055,993.94
5. Step 5: Solve for x
   x = 31,055,993.94/7,085.28
6. Step 6: Final answer
   x = 4,383.17