Finding the Fourth Proportional to 22,081.94, 33,107.25 and 10,388.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,081.94 : 33,107.25 = 10,388.78 : x
2. Step 2: Convert to fraction form
   22,081.94/33,107.25 = 10,388.78/x
3. Step 3: Cross multiply
   22,081.94x = 33,107.25 × 10,388.78
4. Step 4: Simplify right side
   22,081.94x = 343,943,936.66
5. Step 5: Solve for x
   x = 343,943,936.66/22,081.94
6. Step 6: Final answer
   x = 15,575.80