Finding the Fourth Proportional to 13,030.49, 17,981.43 and 8,255.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,030.49 : 17,981.43 = 8,255.54 : x
2. Step 2: Convert to fraction form
   13,030.49/17,981.43 = 8,255.54/x
3. Step 3: Cross multiply
   13,030.49x = 17,981.43 × 8,255.54
4. Step 4: Simplify right side
   13,030.49x = 148,446,324.72
5. Step 5: Solve for x
   x = 148,446,324.72/13,030.49
6. Step 6: Final answer
   x = 11,392.23