Finding the Fourth Proportional to 12,096.48, 18,111.87 and 11,112.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,096.48 : 18,111.87 = 11,112.33 : x
2. Step 2: Convert to fraction form
   12,096.48/18,111.87 = 11,112.33/x
3. Step 3: Cross multiply
   12,096.48x = 18,111.87 × 11,112.33
4. Step 4: Simplify right side
   12,096.48x = 201,265,076.36
5. Step 5: Solve for x
   x = 201,265,076.36/12,096.48
6. Step 6: Final answer
   x = 16,638.32