Finding the Fourth Proportional to 8,519.76, 12,776.85 and 3,588.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,519.76 : 12,776.85 = 3,588.48 : x
2. Step 2: Convert to fraction form
   8,519.76/12,776.85 = 3,588.48/x
3. Step 3: Cross multiply
   8,519.76x = 12,776.85 × 3,588.48
4. Step 4: Simplify right side
   8,519.76x = 45,849,470.69
5. Step 5: Solve for x
   x = 45,849,470.69/8,519.76
6. Step 6: Final answer
   x = 5,381.54