Finding the Fourth Proportional to 5,978.10, 8,241.24 and 3,987.93

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.10 : 8,241.24 = 3,987.93 : x
2. Step 2: Convert to fraction form
   5,978.10/8,241.24 = 3,987.93/x
3. Step 3: Cross multiply
   5,978.10x = 8,241.24 × 3,987.93
4. Step 4: Simplify right side
   5,978.10x = 32,865,488.23
5. Step 5: Solve for x
   x = 32,865,488.23/5,978.10
6. Step 6: Final answer
   x = 5,497.65