Finding the Fourth Proportional to 13,982.67, 19,296.17 and 7,609.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,982.67 : 19,296.17 = 7,609.31 : x
2. Step 2: Convert to fraction form
   13,982.67/19,296.17 = 7,609.31/x
3. Step 3: Cross multiply
   13,982.67x = 19,296.17 × 7,609.31
4. Step 4: Simplify right side
   13,982.67x = 146,830,404.82
5. Step 5: Solve for x
   x = 146,830,404.82/13,982.67
6. Step 6: Final answer
   x = 10,500.88