Finding the Fourth Proportional to 105.72, 158.53 and 32.58

Step by Step Solution

1. Step 1: Write the proportion equation
   105.72 : 158.53 = 32.58 : x
2. Step 2: Convert to fraction form
   105.72/158.53 = 32.58/x
3. Step 3: Cross multiply
   105.72x = 158.53 × 32.58
4. Step 4: Simplify right side
   105.72x = 5,164.91
5. Step 5: Solve for x
   x = 5,164.91/105.72
6. Step 6: Final answer
   x = 48.85