Finding the Fourth Proportional to 6,636.38, 9,960.73 and 3,351.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,636.38 : 9,960.73 = 3,351.78 : x
2. Step 2: Convert to fraction form
   6,636.38/9,960.73 = 3,351.78/x
3. Step 3: Cross multiply
   6,636.38x = 9,960.73 × 3,351.78
4. Step 4: Simplify right side
   6,636.38x = 33,386,167.22
5. Step 5: Solve for x
   x = 33,386,167.22/6,636.38
6. Step 6: Final answer
   x = 5,030.78