Finding the Fourth Proportional to 12,160.09, 18,233.91 and 5,580.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,160.09 : 18,233.91 = 5,580.56 : x
2. Step 2: Convert to fraction form
   12,160.09/18,233.91 = 5,580.56/x
3. Step 3: Cross multiply
   12,160.09x = 18,233.91 × 5,580.56
4. Step 4: Simplify right side
   12,160.09x = 101,755,474.37
5. Step 5: Solve for x
   x = 101,755,474.37/12,160.09
6. Step 6: Final answer
   x = 8,367.99