Finding the Fourth Proportional to 12,674.53, 17,484.78 and 8,199.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,674.53 : 17,484.78 = 8,199.69 : x
2. Step 2: Convert to fraction form
   12,674.53/17,484.78 = 8,199.69/x
3. Step 3: Cross multiply
   12,674.53x = 17,484.78 × 8,199.69
4. Step 4: Simplify right side
   12,674.53x = 143,369,694.78
5. Step 5: Solve for x
   x = 143,369,694.78/12,674.53
6. Step 6: Final answer
   x = 11,311.64