Finding the Fourth Proportional to 162.69, 223.37 and 158.46

Step by Step Solution

1. Step 1: Write the proportion equation
   162.69 : 223.37 = 158.46 : x
2. Step 2: Convert to fraction form
   162.69/223.37 = 158.46/x
3. Step 3: Cross multiply
   162.69x = 223.37 × 158.46
4. Step 4: Simplify right side
   162.69x = 35,394.17
5. Step 5: Solve for x
   x = 35,394.17/162.69
6. Step 6: Final answer
   x = 217.56