Finding the Fourth Proportional to 105.89, 158.79 and 44.98

Step by Step Solution

1. Step 1: Write the proportion equation
   105.89 : 158.79 = 44.98 : x
2. Step 2: Convert to fraction form
   105.89/158.79 = 44.98/x
3. Step 3: Cross multiply
   105.89x = 158.79 × 44.98
4. Step 4: Simplify right side
   105.89x = 7,142.37
5. Step 5: Solve for x
   x = 7,142.37/105.89
6. Step 6: Final answer
   x = 67.45