Finding the Fourth Proportional to 12,846.86, 17,723.31 and 8,647.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,846.86 : 17,723.31 = 8,647.82 : x
2. Step 2: Convert to fraction form
   12,846.86/17,723.31 = 8,647.82/x
3. Step 3: Cross multiply
   12,846.86x = 17,723.31 × 8,647.82
4. Step 4: Simplify right side
   12,846.86x = 153,267,994.68
5. Step 5: Solve for x
   x = 153,267,994.68/12,846.86
6. Step 6: Final answer
   x = 11,930.39