Finding the Fourth Proportional to 89.30, 123.36 and 82.82

Step by Step Solution

1. Step 1: Write the proportion equation
   89.30 : 123.36 = 82.82 : x
2. Step 2: Convert to fraction form
   89.30/123.36 = 82.82/x
3. Step 3: Cross multiply
   89.30x = 123.36 × 82.82
4. Step 4: Simplify right side
   89.30x = 10,216.68
5. Step 5: Solve for x
   x = 10,216.68/89.30
6. Step 6: Final answer
   x = 114.41