Finding the Fourth Proportional to 10,706.79, 16,036.42 and 8,223.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,706.79 : 16,036.42 = 8,223.33 : x
2. Step 2: Convert to fraction form
   10,706.79/16,036.42 = 8,223.33/x
3. Step 3: Cross multiply
   10,706.79x = 16,036.42 × 8,223.33
4. Step 4: Simplify right side
   10,706.79x = 131,872,773.68
5. Step 5: Solve for x
   x = 131,872,773.68/10,706.79
6. Step 6: Final answer
   x = 12,316.74