Finding the Fourth Proportional to 12,233.02, 18,344.89 and 5,209.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,233.02 : 18,344.89 = 5,209.39 : x
2. Step 2: Convert to fraction form
   12,233.02/18,344.89 = 5,209.39/x
3. Step 3: Cross multiply
   12,233.02x = 18,344.89 × 5,209.39
4. Step 4: Simplify right side
   12,233.02x = 95,565,638.72
5. Step 5: Solve for x
   x = 95,565,638.72/12,233.02
6. Step 6: Final answer
   x = 7,812.11