Finding the Fourth Proportional to 105.42, 158.16 and 33.29

Step by Step Solution

1. Step 1: Write the proportion equation
   105.42 : 158.16 = 33.29 : x
2. Step 2: Convert to fraction form
   105.42/158.16 = 33.29/x
3. Step 3: Cross multiply
   105.42x = 158.16 × 33.29
4. Step 4: Simplify right side
   105.42x = 5,265.15
5. Step 5: Solve for x
   x = 5,265.15/105.42
6. Step 6: Final answer
   x = 49.94