Finding the Fourth Proportional to 6,398.31, 8,829.86 and 3,745.47

Step by Step Solution

1. Step 1: Write the proportion equation
   6,398.31 : 8,829.86 = 3,745.47 : x
2. Step 2: Convert to fraction form
   6,398.31/8,829.86 = 3,745.47/x
3. Step 3: Cross multiply
   6,398.31x = 8,829.86 × 3,745.47
4. Step 4: Simplify right side
   6,398.31x = 33,071,957.01
5. Step 5: Solve for x
   x = 33,071,957.01/6,398.31
6. Step 6: Final answer
   x = 5,168.86