Finding the Fourth Proportional to 79.08, 118.42 and 42.96

Step by Step Solution

1. Step 1: Write the proportion equation
   79.08 : 118.42 = 42.96 : x
2. Step 2: Convert to fraction form
   79.08/118.42 = 42.96/x
3. Step 3: Cross multiply
   79.08x = 118.42 × 42.96
4. Step 4: Simplify right side
   79.08x = 5,087.32
5. Step 5: Solve for x
   x = 5,087.32/79.08
6. Step 6: Final answer
   x = 64.33