Finding the Fourth Proportional to 105.58, 158.34 and 69.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105.58 : 158.34 = 69.52 : x
2. Step 2: Convert to fraction form
   105.58/158.34 = 69.52/x
3. Step 3: Cross multiply
   105.58x = 158.34 × 69.52
4. Step 4: Simplify right side
   105.58x = 11,007.80
5. Step 5: Solve for x
   x = 11,007.80/105.58
6. Step 6: Final answer
   x = 104.26