Finding the Fourth Proportional to 73,105.94, 109,662.77 and 20,519.52

Step by Step Solution

1. Step 1: Write the proportion equation
   73,105.94 : 109,662.77 = 20,519.52 : x
2. Step 2: Convert to fraction form
   73,105.94/109,662.77 = 20,519.52/x
3. Step 3: Cross multiply
   73,105.94x = 109,662.77 × 20,519.52
4. Step 4: Simplify right side
   73,105.94x = 2,250,227,299.67
5. Step 5: Solve for x
   x = 2,250,227,299.67/73,105.94
6. Step 6: Final answer
   x = 30,780.36