Finding the Fourth Proportional to 82.38, 123.52 and 43.82

Step by Step Solution

1. Step 1: Write the proportion equation
   82.38 : 123.52 = 43.82 : x
2. Step 2: Convert to fraction form
   82.38/123.52 = 43.82/x
3. Step 3: Cross multiply
   82.38x = 123.52 × 43.82
4. Step 4: Simplify right side
   82.38x = 5,412.65
5. Step 5: Solve for x
   x = 5,412.65/82.38
6. Step 6: Final answer
   x = 65.70