Finding the Fourth Proportional to 50,770.37, 76,155.31 and 12,819.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50,770.37 : 76,155.31 = 12,819.72 : x
2. Step 2: Convert to fraction form
   50,770.37/76,155.31 = 12,819.72/x
3. Step 3: Cross multiply
   50,770.37x = 76,155.31 × 12,819.72
4. Step 4: Simplify right side
   50,770.37x = 976,289,660.00
5. Step 5: Solve for x
   x = 976,289,660.00/50,770.37
6. Step 6: Final answer
   x = 19,229.52