Finding the Fourth Proportional to 33,167.12, 49,749.06 and 12,389

Step by Step Solution

1. Step 1: Write the proportion equation
   33,167.12 : 49,749.06 = 12,389 : x
2. Step 2: Convert to fraction form
   33,167.12/49,749.06 = 12,389/x
3. Step 3: Cross multiply
   33,167.12x = 49,749.06 × 12,389
4. Step 4: Simplify right side
   33,167.12x = 616,341,104.34
5. Step 5: Solve for x
   x = 616,341,104.34/33,167.12
6. Step 6: Final answer
   x = 18,582.89