Finding the Fourth Proportional to 82.27, 123.20 and 46.23

Step by Step Solution

1. Step 1: Write the proportion equation
   82.27 : 123.20 = 46.23 : x
2. Step 2: Convert to fraction form
   82.27/123.20 = 46.23/x
3. Step 3: Cross multiply
   82.27x = 123.20 × 46.23
4. Step 4: Simplify right side
   82.27x = 5,695.54
5. Step 5: Solve for x
   x = 5,695.54/82.27
6. Step 6: Final answer
   x = 69.23