Finding the Fourth Proportional to 78.94, 118.31 and 44.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78.94 : 118.31 = 44.72 : x
2. Step 2: Convert to fraction form
   78.94/118.31 = 44.72/x
3. Step 3: Cross multiply
   78.94x = 118.31 × 44.72
4. Step 4: Simplify right side
   78.94x = 5,290.23
5. Step 5: Solve for x
   x = 5,290.23/78.94
6. Step 6: Final answer
   x = 67.02