Finding the Fourth Proportional to 105.32, 157.98 and 69.48

Step by Step Solution

1. Step 1: Write the proportion equation
   105.32 : 157.98 = 69.48 : x
2. Step 2: Convert to fraction form
   105.32/157.98 = 69.48/x
3. Step 3: Cross multiply
   105.32x = 157.98 × 69.48
4. Step 4: Simplify right side
   105.32x = 10,976.45
5. Step 5: Solve for x
   x = 10,976.45/105.32
6. Step 6: Final answer
   x = 104.22