Finding the Fourth Proportional to 12,411.42, 17,107.79 and 10,169.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,411.42 : 17,107.79 = 10,169.34 : x
2. Step 2: Convert to fraction form
   12,411.42/17,107.79 = 10,169.34/x
3. Step 3: Cross multiply
   12,411.42x = 17,107.79 × 10,169.34
4. Step 4: Simplify right side
   12,411.42x = 173,974,882.31
5. Step 5: Solve for x
   x = 173,974,882.31/12,411.42
6. Step 6: Final answer
   x = 14,017.32