Finding the Fourth Proportional to 6,761.89, 9,332.31 and 3,929.32

Step by Step Solution

1. Step 1: Write the proportion equation
   6,761.89 : 9,332.31 = 3,929.32 : x
2. Step 2: Convert to fraction form
   6,761.89/9,332.31 = 3,929.32/x
3. Step 3: Cross multiply
   6,761.89x = 9,332.31 × 3,929.32
4. Step 4: Simplify right side
   6,761.89x = 36,669,632.33
5. Step 5: Solve for x
   x = 36,669,632.33/6,761.89
6. Step 6: Final answer
   x = 5,422.99