Finding the Fourth Proportional to 105.95, 158.68 and 69.37

Step by Step Solution

1. Step 1: Write the proportion equation
   105.95 : 158.68 = 69.37 : x
2. Step 2: Convert to fraction form
   105.95/158.68 = 69.37/x
3. Step 3: Cross multiply
   105.95x = 158.68 × 69.37
4. Step 4: Simplify right side
   105.95x = 11,007.32
5. Step 5: Solve for x
   x = 11,007.32/105.95
6. Step 6: Final answer
   x = 103.89