Finding the Fourth Proportional to 7,022.96, 9,691.72 and 3,879.04

Step by Step Solution

1. Step 1: Write the proportion equation
   7,022.96 : 9,691.72 = 3,879.04 : x
2. Step 2: Convert to fraction form
   7,022.96/9,691.72 = 3,879.04/x
3. Step 3: Cross multiply
   7,022.96x = 9,691.72 × 3,879.04
4. Step 4: Simplify right side
   7,022.96x = 37,594,569.55
5. Step 5: Solve for x
   x = 37,594,569.55/7,022.96
6. Step 6: Final answer
   x = 5,353.09