Finding the Fourth Proportional to 7,192.24, 10,788.72 and 2,808.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,192.24 : 10,788.72 = 2,808.16 : x
2. Step 2: Convert to fraction form
   7,192.24/10,788.72 = 2,808.16/x
3. Step 3: Cross multiply
   7,192.24x = 10,788.72 × 2,808.16
4. Step 4: Simplify right side
   7,192.24x = 30,296,451.96
5. Step 5: Solve for x
   x = 30,296,451.96/7,192.24
6. Step 6: Final answer
   x = 4,212.38