Finding the Fourth Proportional to 162.72, 243.50 and 101.88

Step by Step Solution

1. Step 1: Write the proportion equation
   162.72 : 243.50 = 101.88 : x
2. Step 2: Convert to fraction form
   162.72/243.50 = 101.88/x
3. Step 3: Cross multiply
   162.72x = 243.50 × 101.88
4. Step 4: Simplify right side
   162.72x = 24,807.27
5. Step 5: Solve for x
   x = 24,807.27/162.72
6. Step 6: Final answer
   x = 152.45