Finding the Fourth Proportional to 55,179.20, 82,770.32 and 20,144.96

Step by Step Solution

1. Step 1: Write the proportion equation
   55,179.20 : 82,770.32 = 20,144.96 : x
2. Step 2: Convert to fraction form
   55,179.20/82,770.32 = 20,144.96/x
3. Step 3: Cross multiply
   55,179.20x = 82,770.32 × 20,144.96
4. Step 4: Simplify right side
   55,179.20x = 1,667,404,785.59
5. Step 5: Solve for x
   x = 1,667,404,785.59/55,179.20
6. Step 6: Final answer
   x = 30,217.99