Finding the Fourth Proportional to 9,082.88, 13,615.68 and 5,786.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,082.88 : 13,615.68 = 5,786.72 : x
2. Step 2: Convert to fraction form
   9,082.88/13,615.68 = 5,786.72/x
3. Step 3: Cross multiply
   9,082.88x = 13,615.68 × 5,786.72
4. Step 4: Simplify right side
   9,082.88x = 78,790,127.77
5. Step 5: Solve for x
   x = 78,790,127.77/9,082.88
6. Step 6: Final answer
   x = 8,674.58