Finding the Fourth Proportional to 83.25, 124.94 and 42.68

Step by Step Solution

1. Step 1: Write the proportion equation
   83.25 : 124.94 = 42.68 : x
2. Step 2: Convert to fraction form
   83.25/124.94 = 42.68/x
3. Step 3: Cross multiply
   83.25x = 124.94 × 42.68
4. Step 4: Simplify right side
   83.25x = 5,332.86
5. Step 5: Solve for x
   x = 5,332.86/83.25
6. Step 6: Final answer
   x = 64.06