Finding the Fourth Proportional to 12,020.86, 16,586.76 and 6,715.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,020.86 : 16,586.76 = 6,715.72 : x
2. Step 2: Convert to fraction form
   12,020.86/16,586.76 = 6,715.72/x
3. Step 3: Cross multiply
   12,020.86x = 16,586.76 × 6,715.72
4. Step 4: Simplify right side
   12,020.86x = 111,392,035.87
5. Step 5: Solve for x
   x = 111,392,035.87/12,020.86
6. Step 6: Final answer
   x = 9,266.56