Finding the Fourth Proportional to 12,704.94, 19,059.03 and 3,940.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,704.94 : 19,059.03 = 3,940.38 : x
2. Step 2: Convert to fraction form
   12,704.94/19,059.03 = 3,940.38/x
3. Step 3: Cross multiply
   12,704.94x = 19,059.03 × 3,940.38
4. Step 4: Simplify right side
   12,704.94x = 75,099,820.63
5. Step 5: Solve for x
   x = 75,099,820.63/12,704.94
6. Step 6: Final answer
   x = 5,911.07