Finding the Fourth Proportional to 12,918.87, 17,825.00 and 7,329.87

Step by Step Solution

1. Step 1: Write the proportion equation
   12,918.87 : 17,825.00 = 7,329.87 : x
2. Step 2: Convert to fraction form
   12,918.87/17,825.00 = 7,329.87/x
3. Step 3: Cross multiply
   12,918.87x = 17,825.00 × 7,329.87
4. Step 4: Simplify right side
   12,918.87x = 130,654,896.10
5. Step 5: Solve for x
   x = 130,654,896.10/12,918.87
6. Step 6: Final answer
   x = 10,113.49