Finding the Fourth Proportional to 13,760.43, 18,969.42 and 10,170.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,760.43 : 18,969.42 = 10,170.10 : x
2. Step 2: Convert to fraction form
   13,760.43/18,969.42 = 10,170.10/x
3. Step 3: Cross multiply
   13,760.43x = 18,969.42 × 10,170.10
4. Step 4: Simplify right side
   13,760.43x = 192,920,898.34
5. Step 5: Solve for x
   x = 192,920,898.34/13,760.43
6. Step 6: Final answer
   x = 14,019.98