Finding the Fourth Proportional to 5,081.81, 7,617.24 and 3,321.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,081.81 : 7,617.24 = 3,321.27 : x
2. Step 2: Convert to fraction form
   5,081.81/7,617.24 = 3,321.27/x
3. Step 3: Cross multiply
   5,081.81x = 7,617.24 × 3,321.27
4. Step 4: Simplify right side
   5,081.81x = 25,298,910.69
5. Step 5: Solve for x
   x = 25,298,910.69/5,081.81
6. Step 6: Final answer
   x = 4,978.33