Finding the Fourth Proportional to 9,966.72, 14,949.94 and 3,397.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,966.72 : 14,949.94 = 3,397.49 : x
2. Step 2: Convert to fraction form
   9,966.72/14,949.94 = 3,397.49/x
3. Step 3: Cross multiply
   9,966.72x = 14,949.94 × 3,397.49
4. Step 4: Simplify right side
   9,966.72x = 50,792,271.65
5. Step 5: Solve for x
   x = 50,792,271.65/9,966.72
6. Step 6: Final answer
   x = 5,096.19