Finding the Fourth Proportional to 7,159.69, 10,743.78 and 3,872.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,159.69 : 10,743.78 = 3,872.71 : x
2. Step 2: Convert to fraction form
   7,159.69/10,743.78 = 3,872.71/x
3. Step 3: Cross multiply
   7,159.69x = 10,743.78 × 3,872.71
4. Step 4: Simplify right side
   7,159.69x = 41,607,490.52
5. Step 5: Solve for x
   x = 41,607,490.52/7,159.69
6. Step 6: Final answer
   x = 5,811.36