Finding the Fourth Proportional to 162.43, 243.83 and 127.83

Step by Step Solution

1. Step 1: Write the proportion equation
   162.43 : 243.83 = 127.83 : x
2. Step 2: Convert to fraction form
   162.43/243.83 = 127.83/x
3. Step 3: Cross multiply
   162.43x = 243.83 × 127.83
4. Step 4: Simplify right side
   162.43x = 31,168.79
5. Step 5: Solve for x
   x = 31,168.79/162.43
6. Step 6: Final answer
   x = 191.89