Finding the Fourth Proportional to 12,833.36, 17,709.85 and 7,168.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,833.36 : 17,709.85 = 7,168.19 : x
2. Step 2: Convert to fraction form
   12,833.36/17,709.85 = 7,168.19/x
3. Step 3: Cross multiply
   12,833.36x = 17,709.85 × 7,168.19
4. Step 4: Simplify right side
   12,833.36x = 126,947,587.59
5. Step 5: Solve for x
   x = 126,947,587.59/12,833.36
6. Step 6: Final answer
   x = 9,892.00