Finding the Fourth Proportional to 96.50, 144.59 and 50.18

Step by Step Solution

1. Step 1: Write the proportion equation
   96.50 : 144.59 = 50.18 : x
2. Step 2: Convert to fraction form
   96.50/144.59 = 50.18/x
3. Step 3: Cross multiply
   96.50x = 144.59 × 50.18
4. Step 4: Simplify right side
   96.50x = 7,254.55
5. Step 5: Solve for x
   x = 7,254.55/96.50
6. Step 6: Final answer
   x = 75.17