Finding the Fourth Proportional to 33,105.72, 49,642.95 and 12,031.08

Step by Step Solution

1. Step 1: Write the proportion equation
   33,105.72 : 49,642.95 = 12,031.08 : x
2. Step 2: Convert to fraction form
   33,105.72/49,642.95 = 12,031.08/x
3. Step 3: Cross multiply
   33,105.72x = 49,642.95 × 12,031.08
4. Step 4: Simplify right side
   33,105.72x = 597,258,302.89
5. Step 5: Solve for x
   x = 597,258,302.89/33,105.72
6. Step 6: Final answer
   x = 18,040.94