Finding the Fourth Proportional to 7,192.56, 10,788.72 and 2,809.92

Step by Step Solution

1. Step 1: Write the proportion equation
   7,192.56 : 10,788.72 = 2,809.92 : x
2. Step 2: Convert to fraction form
   7,192.56/10,788.72 = 2,809.92/x
3. Step 3: Cross multiply
   7,192.56x = 10,788.72 × 2,809.92
4. Step 4: Simplify right side
   7,192.56x = 30,315,440.10
5. Step 5: Solve for x
   x = 30,315,440.10/7,192.56
6. Step 6: Final answer
   x = 4,214.83