Finding the Fourth Proportional to 10,890.37, 15,028.60 and 5,922.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890.37 : 15,028.60 = 5,922.37 : x
2. Step 2: Convert to fraction form
   10,890.37/15,028.60 = 5,922.37/x
3. Step 3: Cross multiply
   10,890.37x = 15,028.60 × 5,922.37
4. Step 4: Simplify right side
   10,890.37x = 89,004,929.78
5. Step 5: Solve for x
   x = 89,004,929.78/10,890.37
6. Step 6: Final answer
   x = 8,172.81