Finding the Fourth Proportional to 105.59, 158.38 and 33.45

Step by Step Solution

1. Step 1: Write the proportion equation
   105.59 : 158.38 = 33.45 : x
2. Step 2: Convert to fraction form
   105.59/158.38 = 33.45/x
3. Step 3: Cross multiply
   105.59x = 158.38 × 33.45
4. Step 4: Simplify right side
   105.59x = 5,297.81
5. Step 5: Solve for x
   x = 5,297.81/105.59
6. Step 6: Final answer
   x = 50.17