Finding the Fourth Proportional to 33,105.61, 49,642.81 and 12,030.80

Step by Step Solution

1. Step 1: Write the proportion equation
   33,105.61 : 49,642.81 = 12,030.80 : x
2. Step 2: Convert to fraction form
   33,105.61/49,642.81 = 12,030.80/x
3. Step 3: Cross multiply
   33,105.61x = 49,642.81 × 12,030.80
4. Step 4: Simplify right side
   33,105.61x = 597,242,440.26
5. Step 5: Solve for x
   x = 597,242,440.26/33,105.61
6. Step 6: Final answer
   x = 18,040.52