Finding the Fourth Proportional to 7,176.57, 10,760.72 and 2,788.90

Step by Step Solution

1. Step 1: Write the proportion equation
   7,176.57 : 10,760.72 = 2,788.90 : x
2. Step 2: Convert to fraction form
   7,176.57/10,760.72 = 2,788.90/x
3. Step 3: Cross multiply
   7,176.57x = 10,760.72 × 2,788.90
4. Step 4: Simplify right side
   7,176.57x = 30,010,591.94
5. Step 5: Solve for x
   x = 30,010,591.94/7,176.57
6. Step 6: Final answer
   x = 4,181.74