Finding the Fourth Proportional to 8,724.31, 12,039.59 and 4,745.41

Step by Step Solution

1. Step 1: Write the proportion equation
   8,724.31 : 12,039.59 = 4,745.41 : x
2. Step 2: Convert to fraction form
   8,724.31/12,039.59 = 4,745.41/x
3. Step 3: Cross multiply
   8,724.31x = 12,039.59 × 4,745.41
4. Step 4: Simplify right side
   8,724.31x = 57,132,779.71
5. Step 5: Solve for x
   x = 57,132,779.71/8,724.31
6. Step 6: Final answer
   x = 6,548.69