Finding the Fourth Proportional to 127.98, 176.52 and 98.82

Step by Step Solution

1. Step 1: Write the proportion equation
   127.98 : 176.52 = 98.82 : x
2. Step 2: Convert to fraction form
   127.98/176.52 = 98.82/x
3. Step 3: Cross multiply
   127.98x = 176.52 × 98.82
4. Step 4: Simplify right side
   127.98x = 17,443.71
5. Step 5: Solve for x
   x = 17,443.71/127.98
6. Step 6: Final answer
   x = 136.30