Finding the Fourth Proportional to 109.72, 151.25 and 68.24

Step by Step Solution

1. Step 1: Write the proportion equation
   109.72 : 151.25 = 68.24 : x
2. Step 2: Convert to fraction form
   109.72/151.25 = 68.24/x
3. Step 3: Cross multiply
   109.72x = 151.25 × 68.24
4. Step 4: Simplify right side
   109.72x = 10,321.30
5. Step 5: Solve for x
   x = 10,321.30/109.72
6. Step 6: Final answer
   x = 94.07