Finding the Fourth Proportional to 105.52, 157.86 and 69.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105.52 : 157.86 = 69.52 : x
2. Step 2: Convert to fraction form
   105.52/157.86 = 69.52/x
3. Step 3: Cross multiply
   105.52x = 157.86 × 69.52
4. Step 4: Simplify right side
   105.52x = 10,974.43
5. Step 5: Solve for x
   x = 10,974.43/105.52
6. Step 6: Final answer
   x = 104.00