Finding the Fourth Proportional to 72.27, 108.18 and 46.62

Step by Step Solution

1. Step 1: Write the proportion equation
   72.27 : 108.18 = 46.62 : x
2. Step 2: Convert to fraction form
   72.27/108.18 = 46.62/x
3. Step 3: Cross multiply
   72.27x = 108.18 × 46.62
4. Step 4: Simplify right side
   72.27x = 5,043.35
5. Step 5: Solve for x
   x = 5,043.35/72.27
6. Step 6: Final answer
   x = 69.78