Finding the Fourth Proportional to 12,363.72, 17,049.15 and 8,591.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,363.72 : 17,049.15 = 8,591.16 : x
2. Step 2: Convert to fraction form
   12,363.72/17,049.15 = 8,591.16/x
3. Step 3: Cross multiply
   12,363.72x = 17,049.15 × 8,591.16
4. Step 4: Simplify right side
   12,363.72x = 146,471,975.51
5. Step 5: Solve for x
   x = 146,471,975.51/12,363.72
6. Step 6: Final answer
   x = 11,846.92