Finding the Fourth Proportional to 17,221.41, 23,764.05 and 9,666.54

Step by Step Solution

1. Step 1: Write the proportion equation
   17,221.41 : 23,764.05 = 9,666.54 : x
2. Step 2: Convert to fraction form
   17,221.41/23,764.05 = 9,666.54/x
3. Step 3: Cross multiply
   17,221.41x = 23,764.05 × 9,666.54
4. Step 4: Simplify right side
   17,221.41x = 229,716,139.89
5. Step 5: Solve for x
   x = 229,716,139.89/17,221.41
6. Step 6: Final answer
   x = 13,338.99