Finding the Fourth Proportional to 5,899.02, 8,140.30 and 3,380.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,899.02 : 8,140.30 = 3,380.59 : x
2. Step 2: Convert to fraction form
   5,899.02/8,140.30 = 3,380.59/x
3. Step 3: Cross multiply
   5,899.02x = 8,140.30 × 3,380.59
4. Step 4: Simplify right side
   5,899.02x = 27,519,016.78
5. Step 5: Solve for x
   x = 27,519,016.78/5,899.02
6. Step 6: Final answer
   x = 4,665.01