Finding the Fourth Proportional to 7,012.37, 10,515.83 and 4,821.73

Step by Step Solution

1. Step 1: Write the proportion equation
   7,012.37 : 10,515.83 = 4,821.73 : x
2. Step 2: Convert to fraction form
   7,012.37/10,515.83 = 4,821.73/x
3. Step 3: Cross multiply
   7,012.37x = 10,515.83 × 4,821.73
4. Step 4: Simplify right side
   7,012.37x = 50,704,442.59
5. Step 5: Solve for x
   x = 50,704,442.59/7,012.37
6. Step 6: Final answer
   x = 7,230.71