Finding the Fourth Proportional to 82.27, 123.50 and 34.21

Step by Step Solution

1. Step 1: Write the proportion equation
   82.27 : 123.50 = 34.21 : x
2. Step 2: Convert to fraction form
   82.27/123.50 = 34.21/x
3. Step 3: Cross multiply
   82.27x = 123.50 × 34.21
4. Step 4: Simplify right side
   82.27x = 4,224.94
5. Step 5: Solve for x
   x = 4,224.94/82.27
6. Step 6: Final answer
   x = 51.35