Finding the Fourth Proportional to 73.94, 111.09 and 72.56

Step by Step Solution

1. Step 1: Write the proportion equation
   73.94 : 111.09 = 72.56 : x
2. Step 2: Convert to fraction form
   73.94/111.09 = 72.56/x
3. Step 3: Cross multiply
   73.94x = 111.09 × 72.56
4. Step 4: Simplify right side
   73.94x = 8,060.69
5. Step 5: Solve for x
   x = 8,060.69/73.94
6. Step 6: Final answer
   x = 109.02