Finding the Fourth Proportional to 82.59, 113.98 and 49.39

Step by Step Solution

1. Step 1: Write the proportion equation
   82.59 : 113.98 = 49.39 : x
2. Step 2: Convert to fraction form
   82.59/113.98 = 49.39/x
3. Step 3: Cross multiply
   82.59x = 113.98 × 49.39
4. Step 4: Simplify right side
   82.59x = 5,629.94
5. Step 5: Solve for x
   x = 5,629.94/82.59
6. Step 6: Final answer
   x = 68.17