Finding the Fourth Proportional to 8,266.72, 12,404.64 and 3,586.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,266.72 : 12,404.64 = 3,586.78 : x
2. Step 2: Convert to fraction form
   8,266.72/12,404.64 = 3,586.78/x
3. Step 3: Cross multiply
   8,266.72x = 12,404.64 × 3,586.78
4. Step 4: Simplify right side
   8,266.72x = 44,492,714.66
5. Step 5: Solve for x
   x = 44,492,714.66/8,266.72
6. Step 6: Final answer
   x = 5,382.15