Finding the Fourth Proportional to 16,355.19, 22,570.71 and 9,186.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,355.19 : 22,570.71 = 9,186.37 : x
2. Step 2: Convert to fraction form
   16,355.19/22,570.71 = 9,186.37/x
3. Step 3: Cross multiply
   16,355.19x = 22,570.71 × 9,186.37
4. Step 4: Simplify right side
   16,355.19x = 207,342,916.19
5. Step 5: Solve for x
   x = 207,342,916.19/16,355.19
6. Step 6: Final answer
   x = 12,677.50