Finding the Fourth Proportional to 6,738.39, 10,109.61 and 3,453.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,738.39 : 10,109.61 = 3,453.80 : x
2. Step 2: Convert to fraction form
   6,738.39/10,109.61 = 3,453.80/x
3. Step 3: Cross multiply
   6,738.39x = 10,109.61 × 3,453.80
4. Step 4: Simplify right side
   6,738.39x = 34,916,520.47
5. Step 5: Solve for x
   x = 34,916,520.47/6,738.39
6. Step 6: Final answer
   x = 5,181.73