Finding the Fourth Proportional to 72.81, 109.22 and 24.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72.81 : 109.22 = 24.72 : x
2. Step 2: Convert to fraction form
   72.81/109.22 = 24.72/x
3. Step 3: Cross multiply
   72.81x = 109.22 × 24.72
4. Step 4: Simplify right side
   72.81x = 2,699.92
5. Step 5: Solve for x
   x = 2,699.92/72.81
6. Step 6: Final answer
   x = 37.08