Finding the Fourth Proportional to 10,379.34, 14,221.17 and 10,240.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,379.34 : 14,221.17 = 10,240.83 : x
2. Step 2: Convert to fraction form
   10,379.34/14,221.17 = 10,240.83/x
3. Step 3: Cross multiply
   10,379.34x = 14,221.17 × 10,240.83
4. Step 4: Simplify right side
   10,379.34x = 145,636,584.37
5. Step 5: Solve for x
   x = 145,636,584.37/10,379.34
6. Step 6: Final answer
   x = 14,031.39