Finding the Fourth Proportional to 12,833.39, 17,709.90 and 7,168.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,833.39 : 17,709.90 = 7,168.23 : x
2. Step 2: Convert to fraction form
   12,833.39/17,709.90 = 7,168.23/x
3. Step 3: Cross multiply
   12,833.39x = 17,709.90 × 7,168.23
4. Step 4: Simplify right side
   12,833.39x = 126,948,636.48
5. Step 5: Solve for x
   x = 126,948,636.48/12,833.39
6. Step 6: Final answer
   x = 9,892.06