Finding the Fourth Proportional to 39,604.76, 59,394.59 and 12,944.72

Step by Step Solution

1. Step 1: Write the proportion equation
   39,604.76 : 59,394.59 = 12,944.72 : x
2. Step 2: Convert to fraction form
   39,604.76/59,394.59 = 12,944.72/x
3. Step 3: Cross multiply
   39,604.76x = 59,394.59 × 12,944.72
4. Step 4: Simplify right side
   39,604.76x = 768,846,420.83
5. Step 5: Solve for x
   x = 768,846,420.83/39,604.76
6. Step 6: Final answer
   x = 19,412.98