Finding the Fourth Proportional to 16,099.59, 22,220.09 and 9,389.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,099.59 : 22,220.09 = 9,389.15 : x
2. Step 2: Convert to fraction form
   16,099.59/22,220.09 = 9,389.15/x
3. Step 3: Cross multiply
   16,099.59x = 22,220.09 × 9,389.15
4. Step 4: Simplify right side
   16,099.59x = 208,627,758.02
5. Step 5: Solve for x
   x = 208,627,758.02/16,099.59
6. Step 6: Final answer
   x = 12,958.58