Finding the Fourth Proportional to 127.56, 191.52 and 123.18

Step by Step Solution

1. Step 1: Write the proportion equation
   127.56 : 191.52 = 123.18 : x
2. Step 2: Convert to fraction form
   127.56/191.52 = 123.18/x
3. Step 3: Cross multiply
   127.56x = 191.52 × 123.18
4. Step 4: Simplify right side
   127.56x = 23,591.43
5. Step 5: Solve for x
   x = 23,591.43/127.56
6. Step 6: Final answer
   x = 184.94