Finding the Fourth Proportional to 158.54, 238.01 and 100.56

Step by Step Solution

1. Step 1: Write the proportion equation
   158.54 : 238.01 = 100.56 : x
2. Step 2: Convert to fraction form
   158.54/238.01 = 100.56/x
3. Step 3: Cross multiply
   158.54x = 238.01 × 100.56
4. Step 4: Simplify right side
   158.54x = 23,933.78
5. Step 5: Solve for x
   x = 23,933.78/158.54
6. Step 6: Final answer
   x = 150.97