Finding the Fourth Proportional to 127.50, 191.10 and 93.42

Step by Step Solution

1. Step 1: Write the proportion equation
   127.50 : 191.10 = 93.42 : x
2. Step 2: Convert to fraction form
   127.50/191.10 = 93.42/x
3. Step 3: Cross multiply
   127.50x = 191.10 × 93.42
4. Step 4: Simplify right side
   127.50x = 17,852.56
5. Step 5: Solve for x
   x = 17,852.56/127.50
6. Step 6: Final answer
   x = 140.02