Finding the Fourth Proportional to 92.97, 128.52 and 82.71

Step by Step Solution

1. Step 1: Write the proportion equation
   92.97 : 128.52 = 82.71 : x
2. Step 2: Convert to fraction form
   92.97/128.52 = 82.71/x
3. Step 3: Cross multiply
   92.97x = 128.52 × 82.71
4. Step 4: Simplify right side
   92.97x = 10,629.89
5. Step 5: Solve for x
   x = 10,629.89/92.97
6. Step 6: Final answer
   x = 114.34