Finding the Fourth Proportional to 127.25, 190.72 and 69.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127.25 : 190.72 = 69.50 : x
2. Step 2: Convert to fraction form
   127.25/190.72 = 69.50/x
3. Step 3: Cross multiply
   127.25x = 190.72 × 69.50
4. Step 4: Simplify right side
   127.25x = 13,255.04
5. Step 5: Solve for x
   x = 13,255.04/127.25
6. Step 6: Final answer
   x = 104.17