Finding the Fourth Proportional to 33,429.32, 50,148.07 and 12,365.78

Step by Step Solution

1. Step 1: Write the proportion equation
   33,429.32 : 50,148.07 = 12,365.78 : x
2. Step 2: Convert to fraction form
   33,429.32/50,148.07 = 12,365.78/x
3. Step 3: Cross multiply
   33,429.32x = 50,148.07 × 12,365.78
4. Step 4: Simplify right side
   33,429.32x = 620,120,095.50
5. Step 5: Solve for x
   x = 620,120,095.50/33,429.32
6. Step 6: Final answer
   x = 18,550.19