Finding the Fourth Proportional to 5,558.76, 7,662.20 and 3,765.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,558.76 : 7,662.20 = 3,765.69 : x
2. Step 2: Convert to fraction form
   5,558.76/7,662.20 = 3,765.69/x
3. Step 3: Cross multiply
   5,558.76x = 7,662.20 × 3,765.69
4. Step 4: Simplify right side
   5,558.76x = 28,853,451.09
5. Step 5: Solve for x
   x = 28,853,451.09/5,558.76
6. Step 6: Final answer
   x = 5,190.63