Finding the Fourth Proportional to 22,429.04, 33,578.37 and 13,040.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,429.04 : 33,578.37 = 13,040.42 : x
2. Step 2: Convert to fraction form
   22,429.04/33,578.37 = 13,040.42/x
3. Step 3: Cross multiply
   22,429.04x = 33,578.37 × 13,040.42
4. Step 4: Simplify right side
   22,429.04x = 437,875,879.82
5. Step 5: Solve for x
   x = 437,875,879.82/22,429.04
6. Step 6: Final answer
   x = 19,522.72