Finding the Fourth Proportional to 13,030.13, 17,996.43 and 8,831.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,030.13 : 17,996.43 = 8,831.09 : x
2. Step 2: Convert to fraction form
   13,030.13/17,996.43 = 8,831.09/x
3. Step 3: Cross multiply
   13,030.13x = 17,996.43 × 8,831.09
4. Step 4: Simplify right side
   13,030.13x = 158,928,093.01
5. Step 5: Solve for x
   x = 158,928,093.01/13,030.13
6. Step 6: Final answer
   x = 12,196.97