Finding the Fourth Proportional to 112.32, 168.52 and 64.24

Step by Step Solution

1. Step 1: Write the proportion equation
   112.32 : 168.52 = 64.24 : x
2. Step 2: Convert to fraction form
   112.32/168.52 = 64.24/x
3. Step 3: Cross multiply
   112.32x = 168.52 × 64.24
4. Step 4: Simplify right side
   112.32x = 10,825.72
5. Step 5: Solve for x
   x = 10,825.72/112.32
6. Step 6: Final answer
   x = 96.38