Finding the Fourth Proportional to 7,667.43, 10,579.76 and 4,309.80

Step by Step Solution

1. Step 1: Write the proportion equation
   7,667.43 : 10,579.76 = 4,309.80 : x
2. Step 2: Convert to fraction form
   7,667.43/10,579.76 = 4,309.80/x
3. Step 3: Cross multiply
   7,667.43x = 10,579.76 × 4,309.80
4. Step 4: Simplify right side
   7,667.43x = 45,596,575.20
5. Step 5: Solve for x
   x = 45,596,575.20/7,667.43
6. Step 6: Final answer
   x = 5,946.79