Finding the Fourth Proportional to 6,018.42, 8,309.18 and 5,379.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,018.42 : 8,309.18 = 5,379.18 : x
2. Step 2: Convert to fraction form
   6,018.42/8,309.18 = 5,379.18/x
3. Step 3: Cross multiply
   6,018.42x = 8,309.18 × 5,379.18
4. Step 4: Simplify right side
   6,018.42x = 44,696,574.87
5. Step 5: Solve for x
   x = 44,696,574.87/6,018.42
6. Step 6: Final answer
   x = 7,426.63