Finding the Fourth Proportional to 95.10, 142.43 and 72.24

Step by Step Solution

1. Step 1: Write the proportion equation
   95.10 : 142.43 = 72.24 : x
2. Step 2: Convert to fraction form
   95.10/142.43 = 72.24/x
3. Step 3: Cross multiply
   95.10x = 142.43 × 72.24
4. Step 4: Simplify right side
   95.10x = 10,288.78
5. Step 5: Solve for x
   x = 10,288.78/95.10
6. Step 6: Final answer
   x = 108.19