Finding the Fourth Proportional to 72.81, 109.17 and 32.27

Step by Step Solution

1. Step 1: Write the proportion equation
   72.81 : 109.17 = 32.27 : x
2. Step 2: Convert to fraction form
   72.81/109.17 = 32.27/x
3. Step 3: Cross multiply
   72.81x = 109.17 × 32.27
4. Step 4: Simplify right side
   72.81x = 3,522.37
5. Step 5: Solve for x
   x = 3,522.37/72.81
6. Step 6: Final answer
   x = 48.38