Finding the Fourth Proportional to 78.92, 118.52 and 62.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78.92 : 118.52 = 62.72 : x
2. Step 2: Convert to fraction form
   78.92/118.52 = 62.72/x
3. Step 3: Cross multiply
   78.92x = 118.52 × 62.72
4. Step 4: Simplify right side
   78.92x = 7,433.57
5. Step 5: Solve for x
   x = 7,433.57/78.92
6. Step 6: Final answer
   x = 94.19