Finding the Fourth Proportional to 5,674.43, 8,456.68 and 5,379.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,674.43 : 8,456.68 = 5,379.18 : x
2. Step 2: Convert to fraction form
   5,674.43/8,456.68 = 5,379.18/x
3. Step 3: Cross multiply
   5,674.43x = 8,456.68 × 5,379.18
4. Step 4: Simplify right side
   5,674.43x = 45,490,035.16
5. Step 5: Solve for x
   x = 45,490,035.16/5,674.43
6. Step 6: Final answer
   x = 8,016.67