Finding the Fourth Proportional to 33,167.60, 49,749.76 and 12,389.52

Step by Step Solution

1. Step 1: Write the proportion equation
   33,167.60 : 49,749.76 = 12,389.52 : x
2. Step 2: Convert to fraction form
   33,167.60/49,749.76 = 12,389.52/x
3. Step 3: Cross multiply
   33,167.60x = 49,749.76 × 12,389.52
4. Step 4: Simplify right side
   33,167.60x = 616,375,646.52
5. Step 5: Solve for x
   x = 616,375,646.52/33,167.60
6. Step 6: Final answer
   x = 18,583.67