Finding the Fourth Proportional to 7,669.76, 10,583.60 and 4,311.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,669.76 : 10,583.60 = 4,311.50 : x
2. Step 2: Convert to fraction form
   7,669.76/10,583.60 = 4,311.50/x
3. Step 3: Cross multiply
   7,669.76x = 10,583.60 × 4,311.50
4. Step 4: Simplify right side
   7,669.76x = 45,631,116.92
5. Step 5: Solve for x
   x = 45,631,116.92/7,669.76
6. Step 6: Final answer
   x = 5,949.49