Finding the Fourth Proportional to 9,986.08, 13,782.72 and 5,794.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,986.08 : 13,782.72 = 5,794.96 : x
2. Step 2: Convert to fraction form
   9,986.08/13,782.72 = 5,794.96/x
3. Step 3: Cross multiply
   9,986.08x = 13,782.72 × 5,794.96
4. Step 4: Simplify right side
   9,986.08x = 79,870,311.09
5. Step 5: Solve for x
   x = 79,870,311.09/9,986.08
6. Step 6: Final answer
   x = 7,998.16