Finding the Fourth Proportional to 10,371.39, 15,543.18 and 3,791.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,371.39 : 15,543.18 = 3,791.31 : x
2. Step 2: Convert to fraction form
   10,371.39/15,543.18 = 3,791.31/x
3. Step 3: Cross multiply
   10,371.39x = 15,543.18 × 3,791.31
4. Step 4: Simplify right side
   10,371.39x = 58,929,013.77
5. Step 5: Solve for x
   x = 58,929,013.77/10,371.39
6. Step 6: Final answer
   x = 5,681.88