Finding the Fourth Proportional to 14,976.79, 20,674.61 and 9,674.19

Step by Step Solution

1. Step 1: Write the proportion equation
   14,976.79 : 20,674.61 = 9,674.19 : x
2. Step 2: Convert to fraction form
   14,976.79/20,674.61 = 9,674.19/x
3. Step 3: Cross multiply
   14,976.79x = 20,674.61 × 9,674.19
4. Step 4: Simplify right side
   14,976.79x = 200,010,129.50
5. Step 5: Solve for x
   x = 200,010,129.50/14,976.79
6. Step 6: Final answer
   x = 13,354.67