Finding the Fourth Proportional to 12,896.82, 19,344.69 and 4,131.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,896.82 : 19,344.69 = 4,131.54 : x
2. Step 2: Convert to fraction form
   12,896.82/19,344.69 = 4,131.54/x
3. Step 3: Cross multiply
   12,896.82x = 19,344.69 × 4,131.54
4. Step 4: Simplify right side
   12,896.82x = 79,923,360.52
5. Step 5: Solve for x
   x = 79,923,360.52/12,896.82
6. Step 6: Final answer
   x = 6,197.14