Finding the Fourth Proportional to 17,528.72, 24,189 and 9,570.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,528.72 : 24,189 = 9,570.80 : x
2. Step 2: Convert to fraction form
   17,528.72/24,189 = 9,570.80/x
3. Step 3: Cross multiply
   17,528.72x = 24,189 × 9,570.80
4. Step 4: Simplify right side
   17,528.72x = 231,508,081.20
5. Step 5: Solve for x
   x = 231,508,081.20/17,528.72
6. Step 6: Final answer
   x = 13,207.36