Finding the Fourth Proportional to 82.33, 123.50 and 28.24

Step by Step Solution

1. Step 1: Write the proportion equation
   82.33 : 123.50 = 28.24 : x
2. Step 2: Convert to fraction form
   82.33/123.50 = 28.24/x
3. Step 3: Cross multiply
   82.33x = 123.50 × 28.24
4. Step 4: Simplify right side
   82.33x = 3,487.40
5. Step 5: Solve for x
   x = 3,487.40/82.33
6. Step 6: Final answer
   x = 42.36