Finding the Fourth Proportional to 127.98, 191.82 and 93.91

Step by Step Solution

1. Step 1: Write the proportion equation
   127.98 : 191.82 = 93.91 : x
2. Step 2: Convert to fraction form
   127.98/191.82 = 93.91/x
3. Step 3: Cross multiply
   127.98x = 191.82 × 93.91
4. Step 4: Simplify right side
   127.98x = 18,013.52
5. Step 5: Solve for x
   x = 18,013.52/127.98
6. Step 6: Final answer
   x = 140.75