Finding the Fourth Proportional to 12,715.94, 19,076.04 and 3,949.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,715.94 : 19,076.04 = 3,949.10 : x
2. Step 2: Convert to fraction form
   12,715.94/19,076.04 = 3,949.10/x
3. Step 3: Cross multiply
   12,715.94x = 19,076.04 × 3,949.10
4. Step 4: Simplify right side
   12,715.94x = 75,333,189.56
5. Step 5: Solve for x
   x = 75,333,189.56/12,715.94
6. Step 6: Final answer
   x = 5,924.31