Finding the Fourth Proportional to 72,855.92, 109,290.06 and 20,265.41

Step by Step Solution

1. Step 1: Write the proportion equation
   72,855.92 : 109,290.06 = 20,265.41 : x
2. Step 2: Convert to fraction form
   72,855.92/109,290.06 = 20,265.41/x
3. Step 3: Cross multiply
   72,855.92x = 109,290.06 × 20,265.41
4. Step 4: Simplify right side
   72,855.92x = 2,214,807,874.82
5. Step 5: Solve for x
   x = 2,214,807,874.82/72,855.92
6. Step 6: Final answer
   x = 30,399.83