Finding the Fourth Proportional to 33,019.20, 45,557.69 and 19,579.28

Step by Step Solution

1. Step 1: Write the proportion equation
   33,019.20 : 45,557.69 = 19,579.28 : x
2. Step 2: Convert to fraction form
   33,019.20/45,557.69 = 19,579.28/x
3. Step 3: Cross multiply
   33,019.20x = 45,557.69 × 19,579.28
4. Step 4: Simplify right side
   33,019.20x = 891,986,442.98
5. Step 5: Solve for x
   x = 891,986,442.98/33,019.20
6. Step 6: Final answer
   x = 27,014.17