Finding the Fourth Proportional to 7,173.69, 10,764.78 and 3,886.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,173.69 : 10,764.78 = 3,886.71 : x
2. Step 2: Convert to fraction form
   7,173.69/10,764.78 = 3,886.71/x
3. Step 3: Cross multiply
   7,173.69x = 10,764.78 × 3,886.71
4. Step 4: Simplify right side
   7,173.69x = 41,839,578.07
5. Step 5: Solve for x
   x = 41,839,578.07/7,173.69
6. Step 6: Final answer
   x = 5,832.36