Finding the Fourth Proportional to 12,833.87, 17,710.54 and 7,168.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,833.87 : 17,710.54 = 7,168.71 : x
2. Step 2: Convert to fraction form
   12,833.87/17,710.54 = 7,168.71/x
3. Step 3: Cross multiply
   12,833.87x = 17,710.54 × 7,168.71
4. Step 4: Simplify right side
   12,833.87x = 126,961,707.28
5. Step 5: Solve for x
   x = 126,961,707.28/12,833.87
6. Step 6: Final answer
   x = 9,892.71