Finding the Fourth Proportional to 105.27, 157.77 and 69.27

Step by Step Solution

1. Step 1: Write the proportion equation
   105.27 : 157.77 = 69.27 : x
2. Step 2: Convert to fraction form
   105.27/157.77 = 69.27/x
3. Step 3: Cross multiply
   105.27x = 157.77 × 69.27
4. Step 4: Simplify right side
   105.27x = 10,928.73
5. Step 5: Solve for x
   x = 10,928.73/105.27
6. Step 6: Final answer
   x = 103.82