Finding the Fourth Proportional to 105.74, 158.61 and 33.59

Step by Step Solution

1. Step 1: Write the proportion equation
   105.74 : 158.61 = 33.59 : x
2. Step 2: Convert to fraction form
   105.74/158.61 = 33.59/x
3. Step 3: Cross multiply
   105.74x = 158.61 × 33.59
4. Step 4: Simplify right side
   105.74x = 5,328.30
5. Step 5: Solve for x
   x = 5,328.30/105.74
6. Step 6: Final answer
   x = 50.39