Finding the Fourth Proportional to 33,550.32, 50,330.34 and 12,488.61

Step by Step Solution

1. Step 1: Write the proportion equation
   33,550.32 : 50,330.34 = 12,488.61 : x
2. Step 2: Convert to fraction form
   33,550.32/50,330.34 = 12,488.61/x
3. Step 3: Cross multiply
   33,550.32x = 50,330.34 × 12,488.61
4. Step 4: Simplify right side
   33,550.32x = 628,555,987.43
5. Step 5: Solve for x
   x = 628,555,987.43/33,550.32
6. Step 6: Final answer
   x = 18,734.72