Finding the Fourth Proportional to 5,856.28, 8,078.62 and 3,967.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,856.28 : 8,078.62 = 3,967.96 : x
2. Step 2: Convert to fraction form
   5,856.28/8,078.62 = 3,967.96/x
3. Step 3: Cross multiply
   5,856.28x = 8,078.62 × 3,967.96
4. Step 4: Simplify right side
   5,856.28x = 32,055,641.02
5. Step 5: Solve for x
   x = 32,055,641.02/5,856.28
6. Step 6: Final answer
   x = 5,473.72