Finding the Fourth Proportional to 16,528.89, 22,809.57 and 9,814.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,528.89 : 22,809.57 = 9,814.80 : x
2. Step 2: Convert to fraction form
   16,528.89/22,809.57 = 9,814.80/x
3. Step 3: Cross multiply
   16,528.89x = 22,809.57 × 9,814.80
4. Step 4: Simplify right side
   16,528.89x = 223,871,367.64
5. Step 5: Solve for x
   x = 223,871,367.64/16,528.89
6. Step 6: Final answer
   x = 13,544.25