Finding the Fourth Proportional to 82.82, 123.24 and 79.94

Step by Step Solution

1. Step 1: Write the proportion equation
   82.82 : 123.24 = 79.94 : x
2. Step 2: Convert to fraction form
   82.82/123.24 = 79.94/x
3. Step 3: Cross multiply
   82.82x = 123.24 × 79.94
4. Step 4: Simplify right side
   82.82x = 9,851.81
5. Step 5: Solve for x
   x = 9,851.81/82.82
6. Step 6: Final answer
   x = 118.95