Finding the Fourth Proportional to 7,667.58, 10,578.28 and 4,309.64

Step by Step Solution

1. Step 1: Write the proportion equation
   7,667.58 : 10,578.28 = 4,309.64 : x
2. Step 2: Convert to fraction form
   7,667.58/10,578.28 = 4,309.64/x
3. Step 3: Cross multiply
   7,667.58x = 10,578.28 × 4,309.64
4. Step 4: Simplify right side
   7,667.58x = 45,588,578.62
5. Step 5: Solve for x
   x = 45,588,578.62/7,667.58
6. Step 6: Final answer
   x = 5,945.63