Finding the Fourth Proportional to 8,609.98, 12,915.46 and 2,453.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,609.98 : 12,915.46 = 2,453.50 : x
2. Step 2: Convert to fraction form
   8,609.98/12,915.46 = 2,453.50/x
3. Step 3: Cross multiply
   8,609.98x = 12,915.46 × 2,453.50
4. Step 4: Simplify right side
   8,609.98x = 31,688,081.11
5. Step 5: Solve for x
   x = 31,688,081.11/8,609.98
6. Step 6: Final answer
   x = 3,680.39