Finding the Fourth Proportional to 12,469.89, 18,694.93 and 7,198.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,469.89 : 18,694.93 = 7,198.94 : x
2. Step 2: Convert to fraction form
   12,469.89/18,694.93 = 7,198.94/x
3. Step 3: Cross multiply
   12,469.89x = 18,694.93 × 7,198.94
4. Step 4: Simplify right side
   12,469.89x = 134,583,679.37
5. Step 5: Solve for x
   x = 134,583,679.37/12,469.89
6. Step 6: Final answer
   x = 10,792.69