Finding the Fourth Proportional to 18,426.84, 25,436.61 and 12,466.59

Step by Step Solution

1. Step 1: Write the proportion equation
   18,426.84 : 25,436.61 = 12,466.59 : x
2. Step 2: Convert to fraction form
   18,426.84/25,436.61 = 12,466.59/x
3. Step 3: Cross multiply
   18,426.84x = 25,436.61 × 12,466.59
4. Step 4: Simplify right side
   18,426.84x = 317,107,787.86
5. Step 5: Solve for x
   x = 317,107,787.86/18,426.84
6. Step 6: Final answer
   x = 17,209.02