Finding the Fourth Proportional to 22,308.94, 33,418.79 and 13,419.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,308.94 : 33,418.79 = 13,419.37 : x
2. Step 2: Convert to fraction form
   22,308.94/33,418.79 = 13,419.37/x
3. Step 3: Cross multiply
   22,308.94x = 33,418.79 × 13,419.37
4. Step 4: Simplify right side
   22,308.94x = 448,458,940.87
5. Step 5: Solve for x
   x = 448,458,940.87/22,308.94
6. Step 6: Final answer
   x = 20,102.21