Finding the Fourth Proportional to 13,411.63, 18,508.94 and 7,443.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,411.63 : 18,508.94 = 7,443.82 : x
2. Step 2: Convert to fraction form
   13,411.63/18,508.94 = 7,443.82/x
3. Step 3: Cross multiply
   13,411.63x = 18,508.94 × 7,443.82
4. Step 4: Simplify right side
   13,411.63x = 137,777,217.75
5. Step 5: Solve for x
   x = 137,777,217.75/13,411.63
6. Step 6: Final answer
   x = 10,272.97