Finding the Fourth Proportional to 12,673.98, 19,013.50 and 3,908.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,673.98 : 19,013.50 = 3,908.56 : x
2. Step 2: Convert to fraction form
   12,673.98/19,013.50 = 3,908.56/x
3. Step 3: Cross multiply
   12,673.98x = 19,013.50 × 3,908.56
4. Step 4: Simplify right side
   12,673.98x = 74,315,405.56
5. Step 5: Solve for x
   x = 74,315,405.56/12,673.98
6. Step 6: Final answer
   x = 5,863.62