Finding the Fourth Proportional to 17,405, 24,009.88 and 11,020.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,405 : 24,009.88 = 11,020.80 : x
2. Step 2: Convert to fraction form
   17,405/24,009.88 = 11,020.80/x
3. Step 3: Cross multiply
   17,405x = 24,009.88 × 11,020.80
4. Step 4: Simplify right side
   17,405x = 264,608,085.50
5. Step 5: Solve for x
   x = 264,608,085.50/17,405
6. Step 6: Final answer
   x = 15,202.99