Finding the Fourth Proportional to 105.76, 158.71 and 48.04

Step by Step Solution

1. Step 1: Write the proportion equation
   105.76 : 158.71 = 48.04 : x
2. Step 2: Convert to fraction form
   105.76/158.71 = 48.04/x
3. Step 3: Cross multiply
   105.76x = 158.71 × 48.04
4. Step 4: Simplify right side
   105.76x = 7,624.89
5. Step 5: Solve for x
   x = 7,624.89/105.76
6. Step 6: Final answer
   x = 72.10