Finding the Fourth Proportional to 5,811.08, 8,025.84 and 3,919.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,811.08 : 8,025.84 = 3,919.37 : x
2. Step 2: Convert to fraction form
   5,811.08/8,025.84 = 3,919.37/x
3. Step 3: Cross multiply
   5,811.08x = 8,025.84 × 3,919.37
4. Step 4: Simplify right side
   5,811.08x = 31,456,196.39
5. Step 5: Solve for x
   x = 31,456,196.39/5,811.08
6. Step 6: Final answer
   x = 5,413.15