Finding the Fourth Proportional to 105.61, 158.29 and 44.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105.61 : 158.29 = 44.72 : x
2. Step 2: Convert to fraction form
   105.61/158.29 = 44.72/x
3. Step 3: Cross multiply
   105.61x = 158.29 × 44.72
4. Step 4: Simplify right side
   105.61x = 7,078.73
5. Step 5: Solve for x
   x = 7,078.73/105.61
6. Step 6: Final answer
   x = 67.03