Finding the Fourth Proportional to 127.83, 191.69 and 67.01

Step by Step Solution

1. Step 1: Write the proportion equation
   127.83 : 191.69 = 67.01 : x
2. Step 2: Convert to fraction form
   127.83/191.69 = 67.01/x
3. Step 3: Cross multiply
   127.83x = 191.69 × 67.01
4. Step 4: Simplify right side
   127.83x = 12,845.92
5. Step 5: Solve for x
   x = 12,845.92/127.83
6. Step 6: Final answer
   x = 100.49