Finding the Fourth Proportional to 105.56, 158.52 and 100.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105.56 : 158.52 = 100.52 : x
2. Step 2: Convert to fraction form
   105.56/158.52 = 100.52/x
3. Step 3: Cross multiply
   105.56x = 158.52 × 100.52
4. Step 4: Simplify right side
   105.56x = 15,934.43
5. Step 5: Solve for x
   x = 15,934.43/105.56
6. Step 6: Final answer
   x = 150.95