Finding the Fourth Proportional to 162.07, 243.42 and 123.82

Step by Step Solution

1. Step 1: Write the proportion equation
   162.07 : 243.42 = 123.82 : x
2. Step 2: Convert to fraction form
   162.07/243.42 = 123.82/x
3. Step 3: Cross multiply
   162.07x = 243.42 × 123.82
4. Step 4: Simplify right side
   162.07x = 30,140.26
5. Step 5: Solve for x
   x = 30,140.26/162.07
6. Step 6: Final answer
   x = 185.97