Finding the Fourth Proportional to 33,072.33, 49,607.78 and 8,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,072.33 : 49,607.78 = 8,112.50 : x
2. Step 2: Convert to fraction form
   33,072.33/49,607.78 = 8,112.50/x
3. Step 3: Cross multiply
   33,072.33x = 49,607.78 × 8,112.50
4. Step 4: Simplify right side
   33,072.33x = 402,443,120.90
5. Step 5: Solve for x
   x = 402,443,120.90/33,072.33
6. Step 6: Final answer
   x = 12,168.57