Finding the Fourth Proportional to 11,518.35, 17,277.86 and 3,198.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,518.35 : 17,277.86 = 3,198.98 : x
2. Step 2: Convert to fraction form
   11,518.35/17,277.86 = 3,198.98/x
3. Step 3: Cross multiply
   11,518.35x = 17,277.86 × 3,198.98
4. Step 4: Simplify right side
   11,518.35x = 55,271,464.59
5. Step 5: Solve for x
   x = 55,271,464.59/11,518.35
6. Step 6: Final answer
   x = 4,798.56