Finding the Fourth Proportional to 22,333.10, 33,456.09 and 12,442.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,333.10 : 33,456.09 = 12,442.59 : x
2. Step 2: Convert to fraction form
   22,333.10/33,456.09 = 12,442.59/x
3. Step 3: Cross multiply
   22,333.10x = 33,456.09 × 12,442.59
4. Step 4: Simplify right side
   22,333.10x = 416,280,410.87
5. Step 5: Solve for x
   x = 416,280,410.87/22,333.10
6. Step 6: Final answer
   x = 18,639.62