Finding the Fourth Proportional to 5,967.82, 8,240.57 and 4,978.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,967.82 : 8,240.57 = 4,978.28 : x
2. Step 2: Convert to fraction form
   5,967.82/8,240.57 = 4,978.28/x
3. Step 3: Cross multiply
   5,967.82x = 8,240.57 × 4,978.28
4. Step 4: Simplify right side
   5,967.82x = 41,023,864.82
5. Step 5: Solve for x
   x = 41,023,864.82/5,967.82
6. Step 6: Final answer
   x = 6,874.18