Finding the Fourth Proportional to 10,890.50, 15,028.89 and 5,922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890.50 : 15,028.89 = 5,922.50 : x
2. Step 2: Convert to fraction form
   10,890.50/15,028.89 = 5,922.50/x
3. Step 3: Cross multiply
   10,890.50x = 15,028.89 × 5,922.50
4. Step 4: Simplify right side
   10,890.50x = 89,008,601.03
5. Step 5: Solve for x
   x = 89,008,601.03/10,890.50
6. Step 6: Final answer
   x = 8,173.05