Finding the Fourth Proportional to 72.82, 109.15 and 36.67

Step by Step Solution

1. Step 1: Write the proportion equation
   72.82 : 109.15 = 36.67 : x
2. Step 2: Convert to fraction form
   72.82/109.15 = 36.67/x
3. Step 3: Cross multiply
   72.82x = 109.15 × 36.67
4. Step 4: Simplify right side
   72.82x = 4,002.53
5. Step 5: Solve for x
   x = 4,002.53/72.82
6. Step 6: Final answer
   x = 54.96