Finding the Fourth Proportional to 82.49, 123.69 and 43.95

Step by Step Solution

1. Step 1: Write the proportion equation
   82.49 : 123.69 = 43.95 : x
2. Step 2: Convert to fraction form
   82.49/123.69 = 43.95/x
3. Step 3: Cross multiply
   82.49x = 123.69 × 43.95
4. Step 4: Simplify right side
   82.49x = 5,436.18
5. Step 5: Solve for x
   x = 5,436.18/82.49
6. Step 6: Final answer
   x = 65.91