Finding the Fourth Proportional to 8,401.13, 12,603.52 and 2,557.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,401.13 : 12,603.52 = 2,557.59 : x
2. Step 2: Convert to fraction form
   8,401.13/12,603.52 = 2,557.59/x
3. Step 3: Cross multiply
   8,401.13x = 12,603.52 × 2,557.59
4. Step 4: Simplify right side
   8,401.13x = 32,234,617.57
5. Step 5: Solve for x
   x = 32,234,617.57/8,401.13
6. Step 6: Final answer
   x = 3,836.94