Finding the Fourth Proportional to 9,841.89, 13,579.92 and 5,809.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,841.89 : 13,579.92 = 5,809.98 : x
2. Step 2: Convert to fraction form
   9,841.89/13,579.92 = 5,809.98/x
3. Step 3: Cross multiply
   9,841.89x = 13,579.92 × 5,809.98
4. Step 4: Simplify right side
   9,841.89x = 78,899,063.60
5. Step 5: Solve for x
   x = 78,899,063.60/9,841.89
6. Step 6: Final answer
   x = 8,016.66