Finding the Fourth Proportional to 13,030.38, 17,996.77 and 8,831.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,030.38 : 17,996.77 = 8,831.34 : x
2. Step 2: Convert to fraction form
   13,030.38/17,996.77 = 8,831.34/x
3. Step 3: Cross multiply
   13,030.38x = 17,996.77 × 8,831.34
4. Step 4: Simplify right side
   13,030.38x = 158,935,594.77
5. Step 5: Solve for x
   x = 158,935,594.77/13,030.38
6. Step 6: Final answer
   x = 12,197.31