Finding the Fourth Proportional to 162.06, 242.82 and 123.72

Step by Step Solution

1. Step 1: Write the proportion equation
   162.06 : 242.82 = 123.72 : x
2. Step 2: Convert to fraction form
   162.06/242.82 = 123.72/x
3. Step 3: Cross multiply
   162.06x = 242.82 × 123.72
4. Step 4: Simplify right side
   162.06x = 30,041.69
5. Step 5: Solve for x
   x = 30,041.69/162.06
6. Step 6: Final answer
   x = 185.37