Finding the Fourth Proportional to 12,400.38, 17,104.04 and 7,922.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,400.38 : 17,104.04 = 7,922.16 : x
2. Step 2: Convert to fraction form
   12,400.38/17,104.04 = 7,922.16/x
3. Step 3: Cross multiply
   12,400.38x = 17,104.04 × 7,922.16
4. Step 4: Simplify right side
   12,400.38x = 135,500,901.92
5. Step 5: Solve for x
   x = 135,500,901.92/12,400.38
6. Step 6: Final answer
   x = 10,927.16