Finding the Fourth Proportional to 73.27, 109.91 and 42.83

Step by Step Solution

1. Step 1: Write the proportion equation
   73.27 : 109.91 = 42.83 : x
2. Step 2: Convert to fraction form
   73.27/109.91 = 42.83/x
3. Step 3: Cross multiply
   73.27x = 109.91 × 42.83
4. Step 4: Simplify right side
   73.27x = 4,707.45
5. Step 5: Solve for x
   x = 4,707.45/73.27
6. Step 6: Final answer
   x = 64.25