Finding the Fourth Proportional to 33,111.65, 49,698.69 and 12,072.03

Step by Step Solution

1. Step 1: Write the proportion equation
   33,111.65 : 49,698.69 = 12,072.03 : x
2. Step 2: Convert to fraction form
   33,111.65/49,698.69 = 12,072.03/x
3. Step 3: Cross multiply
   33,111.65x = 49,698.69 × 12,072.03
4. Step 4: Simplify right side
   33,111.65x = 599,963,845.00
5. Step 5: Solve for x
   x = 599,963,845.00/33,111.65
6. Step 6: Final answer
   x = 18,119.42