Finding the Fourth Proportional to 12,003.39, 17,994.18 and 4,207.95

Step by Step Solution

1. Step 1: Write the proportion equation
   12,003.39 : 17,994.18 = 4,207.95 : x
2. Step 2: Convert to fraction form
   12,003.39/17,994.18 = 4,207.95/x
3. Step 3: Cross multiply
   12,003.39x = 17,994.18 × 4,207.95
4. Step 4: Simplify right side
   12,003.39x = 75,718,609.73
5. Step 5: Solve for x
   x = 75,718,609.73/12,003.39
6. Step 6: Final answer
   x = 6,308.10