Finding the Fourth Proportional to 79.25, 118.89 and 43.18

Step by Step Solution

1. Step 1: Write the proportion equation
   79.25 : 118.89 = 43.18 : x
2. Step 2: Convert to fraction form
   79.25/118.89 = 43.18/x
3. Step 3: Cross multiply
   79.25x = 118.89 × 43.18
4. Step 4: Simplify right side
   79.25x = 5,133.37
5. Step 5: Solve for x
   x = 5,133.37/79.25
6. Step 6: Final answer
   x = 64.78