Finding the Fourth Proportional to 72.65, 108.98 and 27.00

Step by Step Solution

1. Step 1: Write the proportion equation
   72.65 : 108.98 = 27.00 : x
2. Step 2: Convert to fraction form
   72.65/108.98 = 27.00/x
3. Step 3: Cross multiply
   72.65x = 108.98 × 27.00
4. Step 4: Simplify right side
   72.65x = 2,941.78
5. Step 5: Solve for x
   x = 2,941.78/72.65
6. Step 6: Final answer
   x = 40.50