Finding the Fourth Proportional to 12,273.93, 16,925.31 and 8,687.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,273.93 : 16,925.31 = 8,687.25 : x
2. Step 2: Convert to fraction form
   12,273.93/16,925.31 = 8,687.25/x
3. Step 3: Cross multiply
   12,273.93x = 16,925.31 × 8,687.25
4. Step 4: Simplify right side
   12,273.93x = 147,034,399.30
5. Step 5: Solve for x
   x = 147,034,399.30/12,273.93
6. Step 6: Final answer
   x = 11,979.41