Finding the Fourth Proportional to 12,223.50, 16,868.43 and 8,039.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,223.50 : 16,868.43 = 8,039.22 : x
2. Step 2: Convert to fraction form
   12,223.50/16,868.43 = 8,039.22/x
3. Step 3: Cross multiply
   12,223.50x = 16,868.43 × 8,039.22
4. Step 4: Simplify right side
   12,223.50x = 135,609,019.82
5. Step 5: Solve for x
   x = 135,609,019.82/12,223.50
6. Step 6: Final answer
   x = 11,094.12