Finding the Fourth Proportional to 7,110, 10,662.56 and 2,728.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,110 : 10,662.56 = 2,728.72 : x
2. Step 2: Convert to fraction form
   7,110/10,662.56 = 2,728.72/x
3. Step 3: Cross multiply
   7,110x = 10,662.56 × 2,728.72
4. Step 4: Simplify right side
   7,110x = 29,095,140.72
5. Step 5: Solve for x
   x = 29,095,140.72/7,110
6. Step 6: Final answer
   x = 4,092.14