Finding the Fourth Proportional to 20,300.69, 30,453.50 and 8,609.96

Step by Step Solution

1. Step 1: Write the proportion equation
   20,300.69 : 30,453.50 = 8,609.96 : x
2. Step 2: Convert to fraction form
   20,300.69/30,453.50 = 8,609.96/x
3. Step 3: Cross multiply
   20,300.69x = 30,453.50 × 8,609.96
4. Step 4: Simplify right side
   20,300.69x = 262,203,286.12
5. Step 5: Solve for x
   x = 262,203,286.12/20,300.69
6. Step 6: Final answer
   x = 12,915.98