Finding the Fourth Proportional to 268.27, 402.42 and 105.94

Step by Step Solution

1. Step 1: Write the proportion equation
   268.27 : 402.42 = 105.94 : x
2. Step 2: Convert to fraction form
   268.27/402.42 = 105.94/x
3. Step 3: Cross multiply
   268.27x = 402.42 × 105.94
4. Step 4: Simplify right side
   268.27x = 42,629.83
5. Step 5: Solve for x
   x = 42,629.83/268.27
6. Step 6: Final answer
   x = 158.91