Finding the Fourth Proportional to 7,665.25, 10,578.09 and 4,308.07

Step by Step Solution

1. Step 1: Write the proportion equation
   7,665.25 : 10,578.09 = 4,308.07 : x
2. Step 2: Convert to fraction form
   7,665.25/10,578.09 = 4,308.07/x
3. Step 3: Cross multiply
   7,665.25x = 10,578.09 × 4,308.07
4. Step 4: Simplify right side
   7,665.25x = 45,571,152.19
5. Step 5: Solve for x
   x = 45,571,152.19/7,665.25
6. Step 6: Final answer
   x = 5,945.16