Finding the Fourth Proportional to 33,111.62, 49,698.64 and 12,072.00

Step by Step Solution

1. Step 1: Write the proportion equation
   33,111.62 : 49,698.64 = 12,072.00 : x
2. Step 2: Convert to fraction form
   33,111.62/49,698.64 = 12,072.00/x
3. Step 3: Cross multiply
   33,111.62x = 49,698.64 × 12,072.00
4. Step 4: Simplify right side
   33,111.62x = 599,961,733.59
5. Step 5: Solve for x
   x = 599,961,733.59/33,111.62
6. Step 6: Final answer
   x = 18,119.37