Finding the Fourth Proportional to 82.28, 123.53 and 48.06

Step by Step Solution

1. Step 1: Write the proportion equation
   82.28 : 123.53 = 48.06 : x
2. Step 2: Convert to fraction form
   82.28/123.53 = 48.06/x
3. Step 3: Cross multiply
   82.28x = 123.53 × 48.06
4. Step 4: Simplify right side
   82.28x = 5,936.61
5. Step 5: Solve for x
   x = 5,936.61/82.28
6. Step 6: Final answer
   x = 72.15