Finding the Fourth Proportional to 12,103.07, 18,157.18 and 4,205.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103.07 : 18,157.18 = 4,205.82 : x
2. Step 2: Convert to fraction form
   12,103.07/18,157.18 = 4,205.82/x
3. Step 3: Cross multiply
   12,103.07x = 18,157.18 × 4,205.82
4. Step 4: Simplify right side
   12,103.07x = 76,365,841.30
5. Step 5: Solve for x
   x = 76,365,841.30/12,103.07
6. Step 6: Final answer
   x = 6,309.63