Finding the Fourth Proportional to 8,103.84, 12,145.20 and 3,658.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,103.84 : 12,145.20 = 3,658.20 : x
2. Step 2: Convert to fraction form
   8,103.84/12,145.20 = 3,658.20/x
3. Step 3: Cross multiply
   8,103.84x = 12,145.20 × 3,658.20
4. Step 4: Simplify right side
   8,103.84x = 44,429,570.64
5. Step 5: Solve for x
   x = 44,429,570.64/8,103.84
6. Step 6: Final answer
   x = 5,482.53