Finding the Fourth Proportional to 42.48, 62.82 and 42.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42.48 : 62.82 = 42.48 : x
2. Step 2: Convert to fraction form
   42.48/62.82 = 42.48/x
3. Step 3: Cross multiply
   42.48x = 62.82 × 42.48
4. Step 4: Simplify right side
   42.48x = 2,668.59
5. Step 5: Solve for x
   x = 2,668.59/42.48
6. Step 6: Final answer
   x = 62.82