Finding the Fourth Proportional to 82.33, 123.62 and 48.12

Step by Step Solution

1. Step 1: Write the proportion equation
   82.33 : 123.62 = 48.12 : x
2. Step 2: Convert to fraction form
   82.33/123.62 = 48.12/x
3. Step 3: Cross multiply
   82.33x = 123.62 × 48.12
4. Step 4: Simplify right side
   82.33x = 5,947.89
5. Step 5: Solve for x
   x = 5,947.89/82.33
6. Step 6: Final answer
   x = 72.25