Finding the Fourth Proportional to 5,665.88, 7,817.72 and 3,306.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,665.88 : 7,817.72 = 3,306.96 : x
2. Step 2: Convert to fraction form
   5,665.88/7,817.72 = 3,306.96/x
3. Step 3: Cross multiply
   5,665.88x = 7,817.72 × 3,306.96
4. Step 4: Simplify right side
   5,665.88x = 25,852,870.80
5. Step 5: Solve for x
   x = 25,852,870.80/5,665.88
6. Step 6: Final answer
   x = 4,562.90