Finding the Fourth Proportional to 5,899.98, 8,140.86 and 3,662.40

Step by Step Solution

1. Step 1: Write the proportion equation
   5,899.98 : 8,140.86 = 3,662.40 : x
2. Step 2: Convert to fraction form
   5,899.98/8,140.86 = 3,662.40/x
3. Step 3: Cross multiply
   5,899.98x = 8,140.86 × 3,662.40
4. Step 4: Simplify right side
   5,899.98x = 29,815,085.66
5. Step 5: Solve for x
   x = 29,815,085.66/5,899.98
6. Step 6: Final answer
   x = 5,053.42