Finding the Fourth Proportional to 12,388.14, 17,098.83 and 7,609.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,388.14 : 17,098.83 = 7,609.68 : x
2. Step 2: Convert to fraction form
   12,388.14/17,098.83 = 7,609.68/x
3. Step 3: Cross multiply
   12,388.14x = 17,098.83 × 7,609.68
4. Step 4: Simplify right side
   12,388.14x = 130,116,624.67
5. Step 5: Solve for x
   x = 130,116,624.67/12,388.14
6. Step 6: Final answer
   x = 10,503.32