Finding the Fourth Proportional to 6,608.31, 9,120.24 and 3,776.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,608.31 : 9,120.24 = 3,776.15 : x
2. Step 2: Convert to fraction form
   6,608.31/9,120.24 = 3,776.15/x
3. Step 3: Cross multiply
   6,608.31x = 9,120.24 × 3,776.15
4. Step 4: Simplify right side
   6,608.31x = 34,439,348.67
5. Step 5: Solve for x
   x = 34,439,348.67/6,608.31
6. Step 6: Final answer
   x = 5,211.52