Finding the Fourth Proportional to 17,214.81, 23,750.50 and 9,660.09

Step by Step Solution

1. Step 1: Write the proportion equation
   17,214.81 : 23,750.50 = 9,660.09 : x
2. Step 2: Convert to fraction form
   17,214.81/23,750.50 = 9,660.09/x
3. Step 3: Cross multiply
   17,214.81x = 23,750.50 × 9,660.09
4. Step 4: Simplify right side
   17,214.81x = 229,431,967.55
5. Step 5: Solve for x
   x = 229,431,967.55/17,214.81
6. Step 6: Final answer
   x = 13,327.59