Finding the Fourth Proportional to 8,586.72, 12,883.32 and 3,396.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,586.72 : 12,883.32 = 3,396.24 : x
2. Step 2: Convert to fraction form
   8,586.72/12,883.32 = 3,396.24/x
3. Step 3: Cross multiply
   8,586.72x = 12,883.32 × 3,396.24
4. Step 4: Simplify right side
   8,586.72x = 43,754,846.72
5. Step 5: Solve for x
   x = 43,754,846.72/8,586.72
6. Step 6: Final answer
   x = 5,095.64