Finding the Fourth Proportional to 5,355.15, 8,020.83 and 4,113.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,355.15 : 8,020.83 = 4,113.42 : x
2. Step 2: Convert to fraction form
   5,355.15/8,020.83 = 4,113.42/x
3. Step 3: Cross multiply
   5,355.15x = 8,020.83 × 4,113.42
4. Step 4: Simplify right side
   5,355.15x = 32,993,042.54
5. Step 5: Solve for x
   x = 32,993,042.54/5,355.15
6. Step 6: Final answer
   x = 6,160.99