Finding the Fourth Proportional to 16,915.61, 23,348.24 and 9,843.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,915.61 : 23,348.24 = 9,843.40 : x
2. Step 2: Convert to fraction form
   16,915.61/23,348.24 = 9,843.40/x
3. Step 3: Cross multiply
   16,915.61x = 23,348.24 × 9,843.40
4. Step 4: Simplify right side
   16,915.61x = 229,826,065.62
5. Step 5: Solve for x
   x = 229,826,065.62/16,915.61
6. Step 6: Final answer
   x = 13,586.63