Finding the Fourth Proportional to 7,022.42, 9,691.55 and 3,879.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,022.42 : 9,691.55 = 3,879.22 : x
2. Step 2: Convert to fraction form
   7,022.42/9,691.55 = 3,879.22/x
3. Step 3: Cross multiply
   7,022.42x = 9,691.55 × 3,879.22
4. Step 4: Simplify right side
   7,022.42x = 37,595,654.59
5. Step 5: Solve for x
   x = 37,595,654.59/7,022.42
6. Step 6: Final answer
   x = 5,353.66