Finding the Fourth Proportional to 12,846.09, 17,699.94 and 8,647.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,846.09 : 17,699.94 = 8,647.05 : x
2. Step 2: Convert to fraction form
   12,846.09/17,699.94 = 8,647.05/x
3. Step 3: Cross multiply
   12,846.09x = 17,699.94 × 8,647.05
4. Step 4: Simplify right side
   12,846.09x = 153,052,266.18
5. Step 5: Solve for x
   x = 153,052,266.18/12,846.09
6. Step 6: Final answer
   x = 11,914.31