Finding the Fourth Proportional to 6,380.82, 8,805.76 and 3,728.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,380.82 : 8,805.76 = 3,728.18 : x
2. Step 2: Convert to fraction form
   6,380.82/8,805.76 = 3,728.18/x
3. Step 3: Cross multiply
   6,380.82x = 8,805.76 × 3,728.18
4. Step 4: Simplify right side
   6,380.82x = 32,829,395.65
5. Step 5: Solve for x
   x = 32,829,395.65/6,380.82
6. Step 6: Final answer
   x = 5,145.01