Finding the Fourth Proportional to 12,909.82, 19,367.25 and 4,144.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,909.82 : 19,367.25 = 4,144.06 : x
2. Step 2: Convert to fraction form
   12,909.82/19,367.25 = 4,144.06/x
3. Step 3: Cross multiply
   12,909.82x = 19,367.25 × 4,144.06
4. Step 4: Simplify right side
   12,909.82x = 80,259,046.04
5. Step 5: Solve for x
   x = 80,259,046.04/12,909.82
6. Step 6: Final answer
   x = 6,216.90