Finding the Fourth Proportional to 12,061.15, 16,644.45 and 7,028.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,061.15 : 16,644.45 = 7,028.29 : x
2. Step 2: Convert to fraction form
   12,061.15/16,644.45 = 7,028.29/x
3. Step 3: Cross multiply
   12,061.15x = 16,644.45 × 7,028.29
4. Step 4: Simplify right side
   12,061.15x = 116,982,021.49
5. Step 5: Solve for x
   x = 116,982,021.49/12,061.15
6. Step 6: Final answer
   x = 9,699.08