Finding the Fourth Proportional to 43.69, 65.27 and 42.17

Step by Step Solution

1. Step 1: Write the proportion equation
   43.69 : 65.27 = 42.17 : x
2. Step 2: Convert to fraction form
   43.69/65.27 = 42.17/x
3. Step 3: Cross multiply
   43.69x = 65.27 × 42.17
4. Step 4: Simplify right side
   43.69x = 2,752.70
5. Step 5: Solve for x
   x = 2,752.70/43.69
6. Step 6: Final answer
   x = 63.01