Finding the Fourth Proportional to 8,603.52, 12,904.06 and 2,759.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,603.52 : 12,904.06 = 2,759.37 : x
2. Step 2: Convert to fraction form
   8,603.52/12,904.06 = 2,759.37/x
3. Step 3: Cross multiply
   8,603.52x = 12,904.06 × 2,759.37
4. Step 4: Simplify right side
   8,603.52x = 35,607,025.93
5. Step 5: Solve for x
   x = 35,607,025.93/8,603.52
6. Step 6: Final answer
   x = 4,138.66