Finding the Fourth Proportional to 5,978.03, 8,245.33 and 4,087.64

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.03 : 8,245.33 = 4,087.64 : x
2. Step 2: Convert to fraction form
   5,978.03/8,245.33 = 4,087.64/x
3. Step 3: Cross multiply
   5,978.03x = 8,245.33 × 4,087.64
4. Step 4: Simplify right side
   5,978.03x = 33,703,945.17
5. Step 5: Solve for x
   x = 33,703,945.17/5,978.03
6. Step 6: Final answer
   x = 5,637.97