Finding the Fourth Proportional to 10,704.72, 16,016.76 and 7,424.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,704.72 : 16,016.76 = 7,424.16 : x
2. Step 2: Convert to fraction form
   10,704.72/16,016.76 = 7,424.16/x
3. Step 3: Cross multiply
   10,704.72x = 16,016.76 × 7,424.16
4. Step 4: Simplify right side
   10,704.72x = 118,910,988.92
5. Step 5: Solve for x
   x = 118,910,988.92/10,704.72
6. Step 6: Final answer
   x = 11,108.28