Finding the Fourth Proportional to 12,216.02, 16,857.72 and 6,627.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,216.02 : 16,857.72 = 6,627.02 : x
2. Step 2: Convert to fraction form
   12,216.02/16,857.72 = 6,627.02/x
3. Step 3: Cross multiply
   12,216.02x = 16,857.72 × 6,627.02
4. Step 4: Simplify right side
   12,216.02x = 111,716,363.31
5. Step 5: Solve for x
   x = 111,716,363.31/12,216.02
6. Step 6: Final answer
   x = 9,145.07