Finding the Fourth Proportional to 33,378.77, 50,066.33 and 8,418.83

Step by Step Solution

1. Step 1: Write the proportion equation
   33,378.77 : 50,066.33 = 8,418.83 : x
2. Step 2: Convert to fraction form
   33,378.77/50,066.33 = 8,418.83/x
3. Step 3: Cross multiply
   33,378.77x = 50,066.33 × 8,418.83
4. Step 4: Simplify right side
   33,378.77x = 421,499,628.57
5. Step 5: Solve for x
   x = 421,499,628.57/33,378.77
6. Step 6: Final answer
   x = 12,627.78