Finding the Fourth Proportional to 5,811.91, 8,016.38 and 3,821.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,811.91 : 8,016.38 = 3,821.83 : x
2. Step 2: Convert to fraction form
   5,811.91/8,016.38 = 3,821.83/x
3. Step 3: Cross multiply
   5,811.91x = 8,016.38 × 3,821.83
4. Step 4: Simplify right side
   5,811.91x = 30,637,202.43
5. Step 5: Solve for x
   x = 30,637,202.43/5,811.91
6. Step 6: Final answer
   x = 5,271.45