Finding the Fourth Proportional to 11,046.09, 16,538.04 and 8,285.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,046.09 : 16,538.04 = 8,285.61 : x
2. Step 2: Convert to fraction form
   11,046.09/16,538.04 = 8,285.61/x
3. Step 3: Cross multiply
   11,046.09x = 16,538.04 × 8,285.61
4. Step 4: Simplify right side
   11,046.09x = 137,027,749.60
5. Step 5: Solve for x
   x = 137,027,749.60/11,046.09
6. Step 6: Final answer
   x = 12,405.09