Finding the Fourth Proportional to 105.83, 158.72 and 33.65

Step by Step Solution

1. Step 1: Write the proportion equation
   105.83 : 158.72 = 33.65 : x
2. Step 2: Convert to fraction form
   105.83/158.72 = 33.65/x
3. Step 3: Cross multiply
   105.83x = 158.72 × 33.65
4. Step 4: Simplify right side
   105.83x = 5,339.97
5. Step 5: Solve for x
   x = 5,339.97/105.83
6. Step 6: Final answer
   x = 50.46