Finding the Fourth Proportional to 12,940.37, 19,396.72 and 6,694.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,940.37 : 19,396.72 = 6,694.10 : x
2. Step 2: Convert to fraction form
   12,940.37/19,396.72 = 6,694.10/x
3. Step 3: Cross multiply
   12,940.37x = 19,396.72 × 6,694.10
4. Step 4: Simplify right side
   12,940.37x = 129,843,469.63
5. Step 5: Solve for x
   x = 129,843,469.63/12,940.37
6. Step 6: Final answer
   x = 10,033.98