Finding the Fourth Proportional to 12,019.05, 16,586.33 and 6,641.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.05 : 16,586.33 = 6,641.37 : x
2. Step 2: Convert to fraction form
   12,019.05/16,586.33 = 6,641.37/x
3. Step 3: Cross multiply
   12,019.05x = 16,586.33 × 6,641.37
4. Step 4: Simplify right side
   12,019.05x = 110,155,921.27
5. Step 5: Solve for x
   x = 110,155,921.27/12,019.05
6. Step 6: Final answer
   x = 9,165.11