Finding the Fourth Proportional to 9,960.72, 14,947.56 and 4,417.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,960.72 : 14,947.56 = 4,417.68 : x
2. Step 2: Convert to fraction form
   9,960.72/14,947.56 = 4,417.68/x
3. Step 3: Cross multiply
   9,960.72x = 14,947.56 × 4,417.68
4. Step 4: Simplify right side
   9,960.72x = 66,033,536.86
5. Step 5: Solve for x
   x = 66,033,536.86/9,960.72
6. Step 6: Final answer
   x = 6,629.39