Finding the Fourth Proportional to 16,310.15, 22,499.78 and 9,591.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,310.15 : 22,499.78 = 9,591.50 : x
2. Step 2: Convert to fraction form
   16,310.15/22,499.78 = 9,591.50/x
3. Step 3: Cross multiply
   16,310.15x = 22,499.78 × 9,591.50
4. Step 4: Simplify right side
   16,310.15x = 215,806,479.41
5. Step 5: Solve for x
   x = 215,806,479.41/16,310.15
6. Step 6: Final answer
   x = 13,231.43