Finding the Fourth Proportional to 10,989.87, 15,174.71 and 10,150.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,989.87 : 15,174.71 = 10,150.23 : x
2. Step 2: Convert to fraction form
   10,989.87/15,174.71 = 10,150.23/x
3. Step 3: Cross multiply
   10,989.87x = 15,174.71 × 10,150.23
4. Step 4: Simplify right side
   10,989.87x = 154,026,796.68
5. Step 5: Solve for x
   x = 154,026,796.68/10,989.87
6. Step 6: Final answer
   x = 14,015.34