Finding the Fourth Proportional to 7,665.60, 10,577.88 and 4,308.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,665.60 : 10,577.88 = 4,308.15 : x
2. Step 2: Convert to fraction form
   7,665.60/10,577.88 = 4,308.15/x
3. Step 3: Cross multiply
   7,665.60x = 10,577.88 × 4,308.15
4. Step 4: Simplify right side
   7,665.60x = 45,571,093.72
5. Step 5: Solve for x
   x = 45,571,093.72/7,665.60
6. Step 6: Final answer
   x = 5,944.88