Finding the Fourth Proportional to 12,965.92, 19,456.43 and 5,469.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,965.92 : 19,456.43 = 5,469.01 : x
2. Step 2: Convert to fraction form
   12,965.92/19,456.43 = 5,469.01/x
3. Step 3: Cross multiply
   12,965.92x = 19,456.43 × 5,469.01
4. Step 4: Simplify right side
   12,965.92x = 106,407,410.23
5. Step 5: Solve for x
   x = 106,407,410.23/12,965.92
6. Step 6: Final answer
   x = 8,206.70