Finding the Fourth Proportional to 67.02, 100.55 and 38.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67.02 : 100.55 = 38.50 : x
2. Step 2: Convert to fraction form
   67.02/100.55 = 38.50/x
3. Step 3: Cross multiply
   67.02x = 100.55 × 38.50
4. Step 4: Simplify right side
   67.02x = 3,871.18
5. Step 5: Solve for x
   x = 3,871.18/67.02
6. Step 6: Final answer
   x = 57.76