Finding the Fourth Proportional to 17,219.61, 23,763.41 and 9,666.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,219.61 : 23,763.41 = 9,666.50 : x
2. Step 2: Convert to fraction form
   17,219.61/23,763.41 = 9,666.50/x
3. Step 3: Cross multiply
   17,219.61x = 23,763.41 × 9,666.50
4. Step 4: Simplify right side
   17,219.61x = 229,708,871.86
5. Step 5: Solve for x
   x = 229,708,871.86/17,219.61
6. Step 6: Final answer
   x = 13,339.96