Finding the Fourth Proportional to 13,185.61, 19,776.94 and 3,324.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,185.61 : 19,776.94 = 3,324.89 : x
2. Step 2: Convert to fraction form
   13,185.61/19,776.94 = 3,324.89/x
3. Step 3: Cross multiply
   13,185.61x = 19,776.94 × 3,324.89
4. Step 4: Simplify right side
   13,185.61x = 65,756,150.04
5. Step 5: Solve for x
   x = 65,756,150.04/13,185.61
6. Step 6: Final answer
   x = 4,986.96