Finding the Fourth Proportional to 17,168.94, 23,680.92 and 10,455

Step by Step Solution

1. Step 1: Write the proportion equation
   17,168.94 : 23,680.92 = 10,455 : x
2. Step 2: Convert to fraction form
   17,168.94/23,680.92 = 10,455/x
3. Step 3: Cross multiply
   17,168.94x = 23,680.92 × 10,455
4. Step 4: Simplify right side
   17,168.94x = 247,584,018.60
5. Step 5: Solve for x
   x = 247,584,018.60/17,168.94
6. Step 6: Final answer
   x = 14,420.46