Finding the Fourth Proportional to 72,595, 108,933.90 and 28,215.97

Step by Step Solution

1. Step 1: Write the proportion equation
   72,595 : 108,933.90 = 28,215.97 : x
2. Step 2: Convert to fraction form
   72,595/108,933.90 = 28,215.97/x
3. Step 3: Cross multiply
   72,595x = 108,933.90 × 28,215.97
4. Step 4: Simplify right side
   72,595x = 3,073,675,654.38
5. Step 5: Solve for x
   x = 3,073,675,654.38/72,595
6. Step 6: Final answer
   x = 42,340.05