Finding the Fourth Proportional to 162.52, 243.42 and 123.88

Step by Step Solution

1. Step 1: Write the proportion equation
   162.52 : 243.42 = 123.88 : x
2. Step 2: Convert to fraction form
   162.52/243.42 = 123.88/x
3. Step 3: Cross multiply
   162.52x = 243.42 × 123.88
4. Step 4: Simplify right side
   162.52x = 30,154.87
5. Step 5: Solve for x
   x = 30,154.87/162.52
6. Step 6: Final answer
   x = 185.55