Finding the Fourth Proportional to 67.83, 101.60 and 40.72

Step by Step Solution

1. Step 1: Write the proportion equation
   67.83 : 101.60 = 40.72 : x
2. Step 2: Convert to fraction form
   67.83/101.60 = 40.72/x
3. Step 3: Cross multiply
   67.83x = 101.60 × 40.72
4. Step 4: Simplify right side
   67.83x = 4,136.95
5. Step 5: Solve for x
   x = 4,136.95/67.83
6. Step 6: Final answer
   x = 60.99