Finding the Fourth Proportional to 12,169.72, 18,257.82 and 3,849.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,169.72 : 18,257.82 = 3,849.94 : x
2. Step 2: Convert to fraction form
   12,169.72/18,257.82 = 3,849.94/x
3. Step 3: Cross multiply
   12,169.72x = 18,257.82 × 3,849.94
4. Step 4: Simplify right side
   12,169.72x = 70,291,511.53
5. Step 5: Solve for x
   x = 70,291,511.53/12,169.72
6. Step 6: Final answer
   x = 5,775.93