Finding the Fourth Proportional to 11,804.70, 16,290.59 and 6,499.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,804.70 : 16,290.59 = 6,499.61 : x
2. Step 2: Convert to fraction form
   11,804.70/16,290.59 = 6,499.61/x
3. Step 3: Cross multiply
   11,804.70x = 16,290.59 × 6,499.61
4. Step 4: Simplify right side
   11,804.70x = 105,882,367.72
5. Step 5: Solve for x
   x = 105,882,367.72/11,804.70
6. Step 6: Final answer
   x = 8,969.51