Finding the Fourth Proportional to 4,771.53, 7,145.06 and 3,123.27

Step by Step Solution

1. Step 1: Write the proportion equation
   4,771.53 : 7,145.06 = 3,123.27 : x
2. Step 2: Convert to fraction form
   4,771.53/7,145.06 = 3,123.27/x
3. Step 3: Cross multiply
   4,771.53x = 7,145.06 × 3,123.27
4. Step 4: Simplify right side
   4,771.53x = 22,315,935.93
5. Step 5: Solve for x
   x = 22,315,935.93/4,771.53
6. Step 6: Final answer
   x = 4,676.89