Finding the Fourth Proportional to 4,775.73, 7,150.91 and 3,213.33

Step by Step Solution

1. Step 1: Write the proportion equation
   4,775.73 : 7,150.91 = 3,213.33 : x
2. Step 2: Convert to fraction form
   4,775.73/7,150.91 = 3,213.33/x
3. Step 3: Cross multiply
   4,775.73x = 7,150.91 × 3,213.33
4. Step 4: Simplify right side
   4,775.73x = 22,978,217.56
5. Step 5: Solve for x
   x = 22,978,217.56/4,775.73
6. Step 6: Final answer
   x = 4,811.46