Finding the Fourth Proportional to 8,456.84, 12,687.72 and 3,523.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,456.84 : 12,687.72 = 3,523.94 : x
2. Step 2: Convert to fraction form
   8,456.84/12,687.72 = 3,523.94/x
3. Step 3: Cross multiply
   8,456.84x = 12,687.72 × 3,523.94
4. Step 4: Simplify right side
   8,456.84x = 44,710,764.02
5. Step 5: Solve for x
   x = 44,710,764.02/8,456.84
6. Step 6: Final answer
   x = 5,286.94