Finding the Fourth Proportional to 10,907.82, 16,340.30 and 7,198.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,907.82 : 16,340.30 = 7,198.74 : x
2. Step 2: Convert to fraction form
   10,907.82/16,340.30 = 7,198.74/x
3. Step 3: Cross multiply
   10,907.82x = 16,340.30 × 7,198.74
4. Step 4: Simplify right side
   10,907.82x = 117,629,571.22
5. Step 5: Solve for x
   x = 117,629,571.22/10,907.82
6. Step 6: Final answer
   x = 10,783.97