Finding the Fourth Proportional to 33,065, 49,597.77 and 12,288.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,065 : 49,597.77 = 12,288.50 : x
2. Step 2: Convert to fraction form
   33,065/49,597.77 = 12,288.50/x
3. Step 3: Cross multiply
   33,065x = 49,597.77 × 12,288.50
4. Step 4: Simplify right side
   33,065x = 609,482,196.65
5. Step 5: Solve for x
   x = 609,482,196.65/33,065
6. Step 6: Final answer
   x = 18,432.85