Finding the Fourth Proportional to 158.69, 238.43 and 100.94

Step by Step Solution

1. Step 1: Write the proportion equation
   158.69 : 238.43 = 100.94 : x
2. Step 2: Convert to fraction form
   158.69/238.43 = 100.94/x
3. Step 3: Cross multiply
   158.69x = 238.43 × 100.94
4. Step 4: Simplify right side
   158.69x = 24,065.43
5. Step 5: Solve for x
   x = 24,065.43/158.69
6. Step 6: Final answer
   x = 151.66