Finding the Fourth Proportional to 5,598.59, 8,379.92 and 3,720.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,598.59 : 8,379.92 = 3,720.15 : x
2. Step 2: Convert to fraction form
   5,598.59/8,379.92 = 3,720.15/x
3. Step 3: Cross multiply
   5,598.59x = 8,379.92 × 3,720.15
4. Step 4: Simplify right side
   5,598.59x = 31,174,568.69
5. Step 5: Solve for x
   x = 31,174,568.69/5,598.59
6. Step 6: Final answer
   x = 5,568.29