Finding the Fourth Proportional to 5,399.90, 7,451.59 and 3,042.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,399.90 : 7,451.59 = 3,042.18 : x
2. Step 2: Convert to fraction form
   5,399.90/7,451.59 = 3,042.18/x
3. Step 3: Cross multiply
   5,399.90x = 7,451.59 × 3,042.18
4. Step 4: Simplify right side
   5,399.90x = 22,669,078.07
5. Step 5: Solve for x
   x = 22,669,078.07/5,399.90
6. Step 6: Final answer
   x = 4,198.06