Finding the Fourth Proportional to 12,291.53, 18,433.29 and 3,969.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,291.53 : 18,433.29 = 3,969.59 : x
2. Step 2: Convert to fraction form
   12,291.53/18,433.29 = 3,969.59/x
3. Step 3: Cross multiply
   12,291.53x = 18,433.29 × 3,969.59
4. Step 4: Simplify right side
   12,291.53x = 73,172,603.65
5. Step 5: Solve for x
   x = 73,172,603.65/12,291.53
6. Step 6: Final answer
   x = 5,953.09