Finding the Fourth Proportional to 127.27, 190.72 and 73.05

Step by Step Solution

1. Step 1: Write the proportion equation
   127.27 : 190.72 = 73.05 : x
2. Step 2: Convert to fraction form
   127.27/190.72 = 73.05/x
3. Step 3: Cross multiply
   127.27x = 190.72 × 73.05
4. Step 4: Simplify right side
   127.27x = 13,932.10
5. Step 5: Solve for x
   x = 13,932.10/127.27
6. Step 6: Final answer
   x = 109.47