Finding the Fourth Proportional to 4,912.56, 7,337.56 and 4,221.24

Step by Step Solution

1. Step 1: Write the proportion equation
   4,912.56 : 7,337.56 = 4,221.24 : x
2. Step 2: Convert to fraction form
   4,912.56/7,337.56 = 4,221.24/x
3. Step 3: Cross multiply
   4,912.56x = 7,337.56 × 4,221.24
4. Step 4: Simplify right side
   4,912.56x = 30,973,601.77
5. Step 5: Solve for x
   x = 30,973,601.77/4,912.56
6. Step 6: Final answer
   x = 6,304.98