Finding the Fourth Proportional to 3,923.00, 5,401.76 and 3,609.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,923.00 : 5,401.76 = 3,609.53 : x
2. Step 2: Convert to fraction form
   3,923.00/5,401.76 = 3,609.53/x
3. Step 3: Cross multiply
   3,923.00x = 5,401.76 × 3,609.53
4. Step 4: Simplify right side
   3,923.00x = 19,497,769.72
5. Step 5: Solve for x
   x = 19,497,769.72/3,923.00
6. Step 6: Final answer
   x = 4,970.12