Finding the Fourth Proportional to 5,398.98, 8,105.92 and 3,729.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,398.98 : 8,105.92 = 3,729.18 : x
2. Step 2: Convert to fraction form
   5,398.98/8,105.92 = 3,729.18/x
3. Step 3: Cross multiply
   5,398.98x = 8,105.92 × 3,729.18
4. Step 4: Simplify right side
   5,398.98x = 30,228,434.75
5. Step 5: Solve for x
   x = 30,228,434.75/5,398.98
6. Step 6: Final answer
   x = 5,598.92