Finding the Fourth Proportional to 13,031.85, 17,977.33 and 8,243.73

Step by Step Solution

1. Step 1: Write the proportion equation
   13,031.85 : 17,977.33 = 8,243.73 : x
2. Step 2: Convert to fraction form
   13,031.85/17,977.33 = 8,243.73/x
3. Step 3: Cross multiply
   13,031.85x = 17,977.33 × 8,243.73
4. Step 4: Simplify right side
   13,031.85x = 148,200,234.03
5. Step 5: Solve for x
   x = 148,200,234.03/13,031.85
6. Step 6: Final answer
   x = 11,372.16