Finding the Fourth Proportional to 114.69, 171.92 and 42.50

Step by Step Solution

1. Step 1: Write the proportion equation
   114.69 : 171.92 = 42.50 : x
2. Step 2: Convert to fraction form
   114.69/171.92 = 42.50/x
3. Step 3: Cross multiply
   114.69x = 171.92 × 42.50
4. Step 4: Simplify right side
   114.69x = 7,306.60
5. Step 5: Solve for x
   x = 7,306.60/114.69
6. Step 6: Final answer
   x = 63.71