Finding the Fourth Proportional to 8,742.83, 13,101.15 and 3,809.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,742.83 : 13,101.15 = 3,809.80 : x
2. Step 2: Convert to fraction form
   8,742.83/13,101.15 = 3,809.80/x
3. Step 3: Cross multiply
   8,742.83x = 13,101.15 × 3,809.80
4. Step 4: Simplify right side
   8,742.83x = 49,912,695.76
5. Step 5: Solve for x
   x = 49,912,695.76/8,742.83
6. Step 6: Final answer
   x = 5,708.99