Finding the Fourth Proportional to 6,910.47, 9,536.45 and 3,926.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,910.47 : 9,536.45 = 3,926.31 : x
2. Step 2: Convert to fraction form
   6,910.47/9,536.45 = 3,926.31/x
3. Step 3: Cross multiply
   6,910.47x = 9,536.45 × 3,926.31
4. Step 4: Simplify right side
   6,910.47x = 37,443,025.69
5. Step 5: Solve for x
   x = 37,443,025.69/6,910.47
6. Step 6: Final answer
   x = 5,418.30