Finding the Fourth Proportional to 12,709.72, 19,064.72 and 3,351.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,709.72 : 19,064.72 = 3,351.09 : x
2. Step 2: Convert to fraction form
   12,709.72/19,064.72 = 3,351.09/x
3. Step 3: Cross multiply
   12,709.72x = 19,064.72 × 3,351.09
4. Step 4: Simplify right side
   12,709.72x = 63,887,592.54
5. Step 5: Solve for x
   x = 63,887,592.54/12,709.72
6. Step 6: Final answer
   x = 5,026.67