Finding the Fourth Proportional to 11,083.35, 16,588.62 and 8,436.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,083.35 : 16,588.62 = 8,436.57 : x
2. Step 2: Convert to fraction form
   11,083.35/16,588.62 = 8,436.57/x
3. Step 3: Cross multiply
   11,083.35x = 16,588.62 × 8,436.57
4. Step 4: Simplify right side
   11,083.35x = 139,951,053.83
5. Step 5: Solve for x
   x = 139,951,053.83/11,083.35
6. Step 6: Final answer
   x = 12,627.14