Finding the Fourth Proportional to 10,923.64, 15,059.35 and 9,238.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,923.64 : 15,059.35 = 9,238.27 : x
2. Step 2: Convert to fraction form
   10,923.64/15,059.35 = 9,238.27/x
3. Step 3: Cross multiply
   10,923.64x = 15,059.35 × 9,238.27
4. Step 4: Simplify right side
   10,923.64x = 139,122,341.32
5. Step 5: Solve for x
   x = 139,122,341.32/10,923.64
6. Step 6: Final answer
   x = 12,735.90