Finding the Fourth Proportional to 33,112.12, 49,699.39 and 12,072.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,112.12 : 49,699.39 = 12,072.50 : x
2. Step 2: Convert to fraction form
   33,112.12/49,699.39 = 12,072.50/x
3. Step 3: Cross multiply
   33,112.12x = 49,699.39 × 12,072.50
4. Step 4: Simplify right side
   33,112.12x = 599,995,885.78
5. Step 5: Solve for x
   x = 599,995,885.78/33,112.12
6. Step 6: Final answer
   x = 18,120.13