Finding the Fourth Proportional to 10,141.39, 13,979.24 and 9,326.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,141.39 : 13,979.24 = 9,326.73 : x
2. Step 2: Convert to fraction form
   10,141.39/13,979.24 = 9,326.73/x
3. Step 3: Cross multiply
   10,141.39x = 13,979.24 × 9,326.73
4. Step 4: Simplify right side
   10,141.39x = 130,380,550.45
5. Step 5: Solve for x
   x = 130,380,550.45/10,141.39
6. Step 6: Final answer
   x = 12,856.29