Finding the Fourth Proportional to 12,409.92, 17,105.72 and 10,167.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,409.92 : 17,105.72 = 10,167.84 : x
2. Step 2: Convert to fraction form
   12,409.92/17,105.72 = 10,167.84/x
3. Step 3: Cross multiply
   12,409.92x = 17,105.72 × 10,167.84
4. Step 4: Simplify right side
   12,409.92x = 173,928,173.21
5. Step 5: Solve for x
   x = 173,928,173.21/12,409.92
6. Step 6: Final answer
   x = 14,015.25