Finding the Fourth Proportional to 9,898.62, 13,674.33 and 7,906.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,898.62 : 13,674.33 = 7,906.56 : x
2. Step 2: Convert to fraction form
   9,898.62/13,674.33 = 7,906.56/x
3. Step 3: Cross multiply
   9,898.62x = 13,674.33 × 7,906.56
4. Step 4: Simplify right side
   9,898.62x = 108,116,910.60
5. Step 5: Solve for x
   x = 108,116,910.60/9,898.62
6. Step 6: Final answer
   x = 10,922.42