Finding the Fourth Proportional to 73.15, 100.82 and 57.67

Step by Step Solution

1. Step 1: Write the proportion equation
   73.15 : 100.82 = 57.67 : x
2. Step 2: Convert to fraction form
   73.15/100.82 = 57.67/x
3. Step 3: Cross multiply
   73.15x = 100.82 × 57.67
4. Step 4: Simplify right side
   73.15x = 5,814.18
5. Step 5: Solve for x
   x = 5,814.18/73.15
6. Step 6: Final answer
   x = 79.49