Finding the Fourth Proportional to 6,083.91, 9,121.61 and 3,311.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,083.91 : 9,121.61 = 3,311.89 : x
2. Step 2: Convert to fraction form
   6,083.91/9,121.61 = 3,311.89/x
3. Step 3: Cross multiply
   6,083.91x = 9,121.61 × 3,311.89
4. Step 4: Simplify right side
   6,083.91x = 30,209,754.42
5. Step 5: Solve for x
   x = 30,209,754.42/6,083.91
6. Step 6: Final answer
   x = 4,965.52