Finding the Fourth Proportional to 72,452, 108,687.72 and 30,908.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,452 : 108,687.72 = 30,908.72 : x
2. Step 2: Convert to fraction form
   72,452/108,687.72 = 30,908.72/x
3. Step 3: Cross multiply
   72,452x = 108,687.72 × 30,908.72
4. Step 4: Simplify right side
   72,452x = 3,359,398,304.92
5. Step 5: Solve for x
   x = 3,359,398,304.92/72,452
6. Step 6: Final answer
   x = 46,367.23