Finding the Fourth Proportional to 10,992.48, 15,110.96 and 10,923.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,992.48 : 15,110.96 = 10,923.31 : x
2. Step 2: Convert to fraction form
   10,992.48/15,110.96 = 10,923.31/x
3. Step 3: Cross multiply
   10,992.48x = 15,110.96 × 10,923.31
4. Step 4: Simplify right side
   10,992.48x = 165,061,579.75
5. Step 5: Solve for x
   x = 165,061,579.75/10,992.48
6. Step 6: Final answer
   x = 15,015.86