Finding the Fourth Proportional to 11,443.58, 17,161.38 and 5,438.95

Step by Step Solution

1. Step 1: Write the proportion equation
   11,443.58 : 17,161.38 = 5,438.95 : x
2. Step 2: Convert to fraction form
   11,443.58/17,161.38 = 5,438.95/x
3. Step 3: Cross multiply
   11,443.58x = 17,161.38 × 5,438.95
4. Step 4: Simplify right side
   11,443.58x = 93,339,844.85
5. Step 5: Solve for x
   x = 93,339,844.85/11,443.58
6. Step 6: Final answer
   x = 8,156.53