Finding the Fourth Proportional to 17,109.20, 25,660.56 and 7,248.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109.20 : 25,660.56 = 7,248.80 : x
2. Step 2: Convert to fraction form
   17,109.20/25,660.56 = 7,248.80/x
3. Step 3: Cross multiply
   17,109.20x = 25,660.56 × 7,248.80
4. Step 4: Simplify right side
   17,109.20x = 186,008,267.33
5. Step 5: Solve for x
   x = 186,008,267.33/17,109.20
6. Step 6: Final answer
   x = 10,871.83