Finding the Fourth Proportional to 17,109.56, 25,688.20 and 8,796.62

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109.56 : 25,688.20 = 8,796.62 : x
2. Step 2: Convert to fraction form
   17,109.56/25,688.20 = 8,796.62/x
3. Step 3: Cross multiply
   17,109.56x = 25,688.20 × 8,796.62
4. Step 4: Simplify right side
   17,109.56x = 225,969,333.88
5. Step 5: Solve for x
   x = 225,969,333.88/17,109.56
6. Step 6: Final answer
   x = 13,207.20