Finding the Fourth Proportional to 12,285.72, 16,950.31 and 7,251.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,285.72 : 16,950.31 = 7,251.61 : x
2. Step 2: Convert to fraction form
   12,285.72/16,950.31 = 7,251.61/x
3. Step 3: Cross multiply
   12,285.72x = 16,950.31 × 7,251.61
4. Step 4: Simplify right side
   12,285.72x = 122,917,037.50
5. Step 5: Solve for x
   x = 122,917,037.50/12,285.72
6. Step 6: Final answer
   x = 10,004.87