Finding the Fourth Proportional to 12,078.28, 16,672.12 and 7,609.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,078.28 : 16,672.12 = 7,609.52 : x
2. Step 2: Convert to fraction form
   12,078.28/16,672.12 = 7,609.52/x
3. Step 3: Cross multiply
   12,078.28x = 16,672.12 × 7,609.52
4. Step 4: Simplify right side
   12,078.28x = 126,866,830.58
5. Step 5: Solve for x
   x = 126,866,830.58/12,078.28
6. Step 6: Final answer
   x = 10,503.72