Finding the Fourth Proportional to 5,873.20, 8,103.72 and 3,776.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,873.20 : 8,103.72 = 3,776.56 : x
2. Step 2: Convert to fraction form
   5,873.20/8,103.72 = 3,776.56/x
3. Step 3: Cross multiply
   5,873.20x = 8,103.72 × 3,776.56
4. Step 4: Simplify right side
   5,873.20x = 30,604,184.80
5. Step 5: Solve for x
   x = 30,604,184.80/5,873.20
6. Step 6: Final answer
   x = 5,210.82