Finding the Fourth Proportional to 12,012, 16,578.72 and 7,167.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,012 : 16,578.72 = 7,167.04 : x
2. Step 2: Convert to fraction form
   12,012/16,578.72 = 7,167.04/x
3. Step 3: Cross multiply
   12,012x = 16,578.72 × 7,167.04
4. Step 4: Simplify right side
   12,012x = 118,820,349.39
5. Step 5: Solve for x
   x = 118,820,349.39/12,012
6. Step 6: Final answer
   x = 9,891.80