Finding the Fourth Proportional to 8,411.58, 12,603.33 and 5,739.26

Step by Step Solution

1. Step 1: Write the proportion equation
   8,411.58 : 12,603.33 = 5,739.26 : x
2. Step 2: Convert to fraction form
   8,411.58/12,603.33 = 5,739.26/x
3. Step 3: Cross multiply
   8,411.58x = 12,603.33 × 5,739.26
4. Step 4: Simplify right side
   8,411.58x = 72,333,724.72
5. Step 5: Solve for x
   x = 72,333,724.72/8,411.58
6. Step 6: Final answer
   x = 8,599.30