Finding the Fourth Proportional to 9,786.28, 13,502.95 and 5,808.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,786.28 : 13,502.95 = 5,808.72 : x
2. Step 2: Convert to fraction form
   9,786.28/13,502.95 = 5,808.72/x
3. Step 3: Cross multiply
   9,786.28x = 13,502.95 × 5,808.72
4. Step 4: Simplify right side
   9,786.28x = 78,434,855.72
5. Step 5: Solve for x
   x = 78,434,855.72/9,786.28
6. Step 6: Final answer
   x = 8,014.78