Finding the Fourth Proportional to 16,669.24, 25,010.06 and 7,789.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,669.24 : 25,010.06 = 7,789.60 : x
2. Step 2: Convert to fraction form
   16,669.24/25,010.06 = 7,789.60/x
3. Step 3: Cross multiply
   16,669.24x = 25,010.06 × 7,789.60
4. Step 4: Simplify right side
   16,669.24x = 194,818,363.38
5. Step 5: Solve for x
   x = 194,818,363.38/16,669.24
6. Step 6: Final answer
   x = 11,687.30