Finding the Fourth Proportional to 22,411.98, 30,928.31 and 12,340.23

Step by Step Solution

1. Step 1: Write the proportion equation
   22,411.98 : 30,928.31 = 12,340.23 : x
2. Step 2: Convert to fraction form
   22,411.98/30,928.31 = 12,340.23/x
3. Step 3: Cross multiply
   22,411.98x = 30,928.31 × 12,340.23
4. Step 4: Simplify right side
   22,411.98x = 381,662,327.50
5. Step 5: Solve for x
   x = 381,662,327.50/22,411.98
6. Step 6: Final answer
   x = 17,029.39