Finding the Fourth Proportional to 12,196.11, 16,830.59 and 6,890.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.11 : 16,830.59 = 6,890.92 : x
2. Step 2: Convert to fraction form
   12,196.11/16,830.59 = 6,890.92/x
3. Step 3: Cross multiply
   12,196.11x = 16,830.59 × 6,890.92
4. Step 4: Simplify right side
   12,196.11x = 115,978,214.79
5. Step 5: Solve for x
   x = 115,978,214.79/12,196.11
6. Step 6: Final answer
   x = 9,509.45