Finding the Fourth Proportional to 17,099.76, 25,632.63 and 8,212.62

Step by Step Solution

1. Step 1: Write the proportion equation
   17,099.76 : 25,632.63 = 8,212.62 : x
2. Step 2: Convert to fraction form
   17,099.76/25,632.63 = 8,212.62/x
3. Step 3: Cross multiply
   17,099.76x = 25,632.63 × 8,212.62
4. Step 4: Simplify right side
   17,099.76x = 210,511,049.79
5. Step 5: Solve for x
   x = 210,511,049.79/17,099.76
6. Step 6: Final answer
   x = 12,310.76