Finding the Fourth Proportional to 83.69, 125.49 and 42.52

Step by Step Solution

1. Step 1: Write the proportion equation
   83.69 : 125.49 = 42.52 : x
2. Step 2: Convert to fraction form
   83.69/125.49 = 42.52/x
3. Step 3: Cross multiply
   83.69x = 125.49 × 42.52
4. Step 4: Simplify right side
   83.69x = 5,335.83
5. Step 5: Solve for x
   x = 5,335.83/83.69
6. Step 6: Final answer
   x = 63.76