Finding the Fourth Proportional to 12,849.71, 17,711.33 and 8,599.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,849.71 : 17,711.33 = 8,599.23 : x
2. Step 2: Convert to fraction form
   12,849.71/17,711.33 = 8,599.23/x
3. Step 3: Cross multiply
   12,849.71x = 17,711.33 × 8,599.23
4. Step 4: Simplify right side
   12,849.71x = 152,303,757.28
5. Step 5: Solve for x
   x = 152,303,757.28/12,849.71
6. Step 6: Final answer
   x = 11,852.70