Finding the Fourth Proportional to 16,861.83, 23,277.20 and 9,786.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,861.83 : 23,277.20 = 9,786.89 : x
2. Step 2: Convert to fraction form
   16,861.83/23,277.20 = 9,786.89/x
3. Step 3: Cross multiply
   16,861.83x = 23,277.20 × 9,786.89
4. Step 4: Simplify right side
   16,861.83x = 227,811,395.91
5. Step 5: Solve for x
   x = 227,811,395.91/16,861.83
6. Step 6: Final answer
   x = 13,510.48