Finding the Fourth Proportional to 16,389.04, 22,616.82 and 9,316.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389.04 : 22,616.82 = 9,316.82 : x
2. Step 2: Convert to fraction form
   16,389.04/22,616.82 = 9,316.82/x
3. Step 3: Cross multiply
   16,389.04x = 22,616.82 × 9,316.82
4. Step 4: Simplify right side
   16,389.04x = 210,716,840.91
5. Step 5: Solve for x
   x = 210,716,840.91/16,389.04
6. Step 6: Final answer
   x = 12,857.18