Finding the Fourth Proportional to 82.28, 123.29 and 41.71

Step by Step Solution

1. Step 1: Write the proportion equation
   82.28 : 123.29 = 41.71 : x
2. Step 2: Convert to fraction form
   82.28/123.29 = 41.71/x
3. Step 3: Cross multiply
   82.28x = 123.29 × 41.71
4. Step 4: Simplify right side
   82.28x = 5,142.22
5. Step 5: Solve for x
   x = 5,142.22/82.28
6. Step 6: Final answer
   x = 62.50