Finding the Fourth Proportional to 127.59, 190.55 and 103.25

Step by Step Solution

1. Step 1: Write the proportion equation
   127.59 : 190.55 = 103.25 : x
2. Step 2: Convert to fraction form
   127.59/190.55 = 103.25/x
3. Step 3: Cross multiply
   127.59x = 190.55 × 103.25
4. Step 4: Simplify right side
   127.59x = 19,672.82
5. Step 5: Solve for x
   x = 19,672.82/127.59
6. Step 6: Final answer
   x = 154.19