Finding the Fourth Proportional to 11,935.08, 16,470.89 and 8,166.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,935.08 : 16,470.89 = 8,166.15 : x
2. Step 2: Convert to fraction form
   11,935.08/16,470.89 = 8,166.15/x
3. Step 3: Cross multiply
   11,935.08x = 16,470.89 × 8,166.15
4. Step 4: Simplify right side
   11,935.08x = 134,503,717.54
5. Step 5: Solve for x
   x = 134,503,717.54/11,935.08
6. Step 6: Final answer
   x = 11,269.61