Finding the Fourth Proportional to 21,068.04, 31,581.32 and 8,596.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,068.04 : 31,581.32 = 8,596.82 : x
2. Step 2: Convert to fraction form
   21,068.04/31,581.32 = 8,596.82/x
3. Step 3: Cross multiply
   21,068.04x = 31,581.32 × 8,596.82
4. Step 4: Simplify right side
   21,068.04x = 271,498,923.40
5. Step 5: Solve for x
   x = 271,498,923.40/21,068.04
6. Step 6: Final answer
   x = 12,886.77