Finding the Fourth Proportional to 83.26, 124.89 and 42.67

Step by Step Solution

1. Step 1: Write the proportion equation
   83.26 : 124.89 = 42.67 : x
2. Step 2: Convert to fraction form
   83.26/124.89 = 42.67/x
3. Step 3: Cross multiply
   83.26x = 124.89 × 42.67
4. Step 4: Simplify right side
   83.26x = 5,329.06
5. Step 5: Solve for x
   x = 5,329.06/83.26
6. Step 6: Final answer
   x = 64.01