Finding the Fourth Proportional to 105.33, 158.01 and 104.94

Step by Step Solution

1. Step 1: Write the proportion equation
   105.33 : 158.01 = 104.94 : x
2. Step 2: Convert to fraction form
   105.33/158.01 = 104.94/x
3. Step 3: Cross multiply
   105.33x = 158.01 × 104.94
4. Step 4: Simplify right side
   105.33x = 16,581.57
5. Step 5: Solve for x
   x = 16,581.57/105.33
6. Step 6: Final answer
   x = 157.42