Finding the Fourth Proportional to 11,884.72, 16,401.96 and 6,580.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,884.72 : 16,401.96 = 6,580.56 : x
2. Step 2: Convert to fraction form
   11,884.72/16,401.96 = 6,580.56/x
3. Step 3: Cross multiply
   11,884.72x = 16,401.96 × 6,580.56
4. Step 4: Simplify right side
   11,884.72x = 107,934,081.90
5. Step 5: Solve for x
   x = 107,934,081.90/11,884.72
6. Step 6: Final answer
   x = 9,081.75