Finding the Fourth Proportional to 79,520.04, 119,279.98 and 20,355.61

Step by Step Solution

1. Step 1: Write the proportion equation
   79,520.04 : 119,279.98 = 20,355.61 : x
2. Step 2: Convert to fraction form
   79,520.04/119,279.98 = 20,355.61/x
3. Step 3: Cross multiply
   79,520.04x = 119,279.98 × 20,355.61
4. Step 4: Simplify right side
   79,520.04x = 2,428,016,753.69
5. Step 5: Solve for x
   x = 2,428,016,753.69/79,520.04
6. Step 6: Final answer
   x = 30,533.39