Finding the Fourth Proportional to 67.15, 100.73 and 50.07

Step by Step Solution

1. Step 1: Write the proportion equation
   67.15 : 100.73 = 50.07 : x
2. Step 2: Convert to fraction form
   67.15/100.73 = 50.07/x
3. Step 3: Cross multiply
   67.15x = 100.73 × 50.07
4. Step 4: Simplify right side
   67.15x = 5,043.55
5. Step 5: Solve for x
   x = 5,043.55/67.15
6. Step 6: Final answer
   x = 75.11