Finding the Fourth Proportional to 20,241.39, 30,363.90 and 5,449.98

Step by Step Solution

1. Step 1: Write the proportion equation
   20,241.39 : 30,363.90 = 5,449.98 : x
2. Step 2: Convert to fraction form
   20,241.39/30,363.90 = 5,449.98/x
3. Step 3: Cross multiply
   20,241.39x = 30,363.90 × 5,449.98
4. Step 4: Simplify right side
   20,241.39x = 165,482,647.72
5. Step 5: Solve for x
   x = 165,482,647.72/20,241.39
6. Step 6: Final answer
   x = 8,175.46