Finding the Fourth Proportional to 82.06, 122.94 and 45.94

Step by Step Solution

1. Step 1: Write the proportion equation
   82.06 : 122.94 = 45.94 : x
2. Step 2: Convert to fraction form
   82.06/122.94 = 45.94/x
3. Step 3: Cross multiply
   82.06x = 122.94 × 45.94
4. Step 4: Simplify right side
   82.06x = 5,647.86
5. Step 5: Solve for x
   x = 5,647.86/82.06
6. Step 6: Final answer
   x = 68.83