Finding the Fourth Proportional to 17,412, 24,028.56 and 9,960

Step by Step Solution

1. Step 1: Write the proportion equation
   17,412 : 24,028.56 = 9,960 : x
2. Step 2: Convert to fraction form
   17,412/24,028.56 = 9,960/x
3. Step 3: Cross multiply
   17,412x = 24,028.56 × 9,960
4. Step 4: Simplify right side
   17,412x = 239,324,457.60
5. Step 5: Solve for x
   x = 239,324,457.60/17,412
6. Step 6: Final answer
   x = 13,744.80