Finding the Fourth Proportional to 6,687.78, 9,228.81 and 3,662.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,687.78 : 9,228.81 = 3,662.82 : x
2. Step 2: Convert to fraction form
   6,687.78/9,228.81 = 3,662.82/x
3. Step 3: Cross multiply
   6,687.78x = 9,228.81 × 3,662.82
4. Step 4: Simplify right side
   6,687.78x = 33,803,469.84
5. Step 5: Solve for x
   x = 33,803,469.84/6,687.78
6. Step 6: Final answer
   x = 5,054.51