Finding the Fourth Proportional to 118.23, 162.69 and 109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118.23 : 162.69 = 109.50 : x
2. Step 2: Convert to fraction form
   118.23/162.69 = 109.50/x
3. Step 3: Cross multiply
   118.23x = 162.69 × 109.50
4. Step 4: Simplify right side
   118.23x = 17,814.56
5. Step 5: Solve for x
   x = 17,814.56/118.23
6. Step 6: Final answer
   x = 150.68