Finding the Fourth Proportional to 5,853.92, 8,081.96 and 3,867.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,853.92 : 8,081.96 = 3,867.80 : x
2. Step 2: Convert to fraction form
   5,853.92/8,081.96 = 3,867.80/x
3. Step 3: Cross multiply
   5,853.92x = 8,081.96 × 3,867.80
4. Step 4: Simplify right side
   5,853.92x = 31,259,404.89
5. Step 5: Solve for x
   x = 31,259,404.89/5,853.92
6. Step 6: Final answer
   x = 5,339.91