Finding the Fourth Proportional to 12,984.72, 17,919.72 and 7,396.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,984.72 : 17,919.72 = 7,396.08 : x
2. Step 2: Convert to fraction form
   12,984.72/17,919.72 = 7,396.08/x
3. Step 3: Cross multiply
   12,984.72x = 17,919.72 × 7,396.08
4. Step 4: Simplify right side
   12,984.72x = 132,535,682.70
5. Step 5: Solve for x
   x = 132,535,682.70/12,984.72
6. Step 6: Final answer
   x = 10,207.05