Finding the Fourth Proportional to 12,196.89, 16,834.47 and 6,894.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.89 : 16,834.47 = 6,894.78 : x
2. Step 2: Convert to fraction form
   12,196.89/16,834.47 = 6,894.78/x
3. Step 3: Cross multiply
   12,196.89x = 16,834.47 × 6,894.78
4. Step 4: Simplify right side
   12,196.89x = 116,069,967.07
5. Step 5: Solve for x
   x = 116,069,967.07/12,196.89
6. Step 6: Final answer
   x = 9,516.36