Finding the Fourth Proportional to 8,281.83, 12,431.18 and 3,603.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,281.83 : 12,431.18 = 3,603.93 : x
2. Step 2: Convert to fraction form
   8,281.83/12,431.18 = 3,603.93/x
3. Step 3: Cross multiply
   8,281.83x = 12,431.18 × 3,603.93
4. Step 4: Simplify right side
   8,281.83x = 44,801,084.52
5. Step 5: Solve for x
   x = 44,801,084.52/8,281.83
6. Step 6: Final answer
   x = 5,409.56