Finding the Fourth Proportional to 10,608.72, 14,646.78 and 7,257.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,608.72 : 14,646.78 = 7,257.12 : x
2. Step 2: Convert to fraction form
   10,608.72/14,646.78 = 7,257.12/x
3. Step 3: Cross multiply
   10,608.72x = 14,646.78 × 7,257.12
4. Step 4: Simplify right side
   10,608.72x = 106,293,440.07
5. Step 5: Solve for x
   x = 106,293,440.07/10,608.72
6. Step 6: Final answer
   x = 10,019.44