Finding the Fourth Proportional to 12,674.72, 17,496.78 and 8,433.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,674.72 : 17,496.78 = 8,433.30 : x
2. Step 2: Convert to fraction form
   12,674.72/17,496.78 = 8,433.30/x
3. Step 3: Cross multiply
   12,674.72x = 17,496.78 × 8,433.30
4. Step 4: Simplify right side
   12,674.72x = 147,555,594.77
5. Step 5: Solve for x
   x = 147,555,594.77/12,674.72
6. Step 6: Final answer
   x = 11,641.72