Finding the Fourth Proportional to 12,984.56, 17,919.56 and 7,395.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,984.56 : 17,919.56 = 7,395.60 : x
2. Step 2: Convert to fraction form
   12,984.56/17,919.56 = 7,395.60/x
3. Step 3: Cross multiply
   12,984.56x = 17,919.56 × 7,395.60
4. Step 4: Simplify right side
   12,984.56x = 132,525,897.94
5. Step 5: Solve for x
   x = 132,525,897.94/12,984.56
6. Step 6: Final answer
   x = 10,206.42