Finding the Fourth Proportional to 11,728.16, 16,185.12 and 7,010.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,728.16 : 16,185.12 = 7,010.72 : x
2. Step 2: Convert to fraction form
   11,728.16/16,185.12 = 7,010.72/x
3. Step 3: Cross multiply
   11,728.16x = 16,185.12 × 7,010.72
4. Step 4: Simplify right side
   11,728.16x = 113,469,344.49
5. Step 5: Solve for x
   x = 113,469,344.49/11,728.16
6. Step 6: Final answer
   x = 9,674.95