Finding the Fourth Proportional to 72.72, 109.10 and 27.06

Step by Step Solution

1. Step 1: Write the proportion equation
   72.72 : 109.10 = 27.06 : x
2. Step 2: Convert to fraction form
   72.72/109.10 = 27.06/x
3. Step 3: Cross multiply
   72.72x = 109.10 × 27.06
4. Step 4: Simplify right side
   72.72x = 2,952.25
5. Step 5: Solve for x
   x = 2,952.25/72.72
6. Step 6: Final answer
   x = 40.60