Finding the Fourth Proportional to 105.47, 158.25 and 44.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105.47 : 158.25 = 44.72 : x
2. Step 2: Convert to fraction form
   105.47/158.25 = 44.72/x
3. Step 3: Cross multiply
   105.47x = 158.25 × 44.72
4. Step 4: Simplify right side
   105.47x = 7,076.91
5. Step 5: Solve for x
   x = 7,076.91/105.47
6. Step 6: Final answer
   x = 67.10