Finding the Fourth Proportional to 12,196.58, 16,830.59 and 6,891.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.58 : 16,830.59 = 6,891.48 : x
2. Step 2: Convert to fraction form
   12,196.58/16,830.59 = 6,891.48/x
3. Step 3: Cross multiply
   12,196.58x = 16,830.59 × 6,891.48
4. Step 4: Simplify right side
   12,196.58x = 115,987,639.92
5. Step 5: Solve for x
   x = 115,987,639.92/12,196.58
6. Step 6: Final answer
   x = 9,509.85