Finding the Fourth Proportional to 12,020.72, 16,588.62 and 6,715.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,020.72 : 16,588.62 = 6,715.72 : x
2. Step 2: Convert to fraction form
   12,020.72/16,588.62 = 6,715.72/x
3. Step 3: Cross multiply
   12,020.72x = 16,588.62 × 6,715.72
4. Step 4: Simplify right side
   12,020.72x = 111,404,527.11
5. Step 5: Solve for x
   x = 111,404,527.11/12,020.72
6. Step 6: Final answer
   x = 9,267.71