Finding the Fourth Proportional to 11,543.39, 17,315.94 and 4,147.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,543.39 : 17,315.94 = 4,147.91 : x
2. Step 2: Convert to fraction form
   11,543.39/17,315.94 = 4,147.91/x
3. Step 3: Cross multiply
   11,543.39x = 17,315.94 × 4,147.91
4. Step 4: Simplify right side
   11,543.39x = 71,824,960.69
5. Step 5: Solve for x
   x = 71,824,960.69/11,543.39
6. Step 6: Final answer
   x = 6,222.17