Finding the Fourth Proportional to 12,196.28, 16,830.44 and 6,890.99

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.28 : 16,830.44 = 6,890.99 : x
2. Step 2: Convert to fraction form
   12,196.28/16,830.44 = 6,890.99/x
3. Step 3: Cross multiply
   12,196.28x = 16,830.44 × 6,890.99
4. Step 4: Simplify right side
   12,196.28x = 115,978,300.97
5. Step 5: Solve for x
   x = 115,978,300.97/12,196.28
6. Step 6: Final answer
   x = 9,509.32