Finding the Fourth Proportional to 8,499.79, 12,751.53 and 3,305.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.79 : 12,751.53 = 3,305.71 : x
2. Step 2: Convert to fraction form
   8,499.79/12,751.53 = 3,305.71/x
3. Step 3: Cross multiply
   8,499.79x = 12,751.53 × 3,305.71
4. Step 4: Simplify right side
   8,499.79x = 42,152,860.24
5. Step 5: Solve for x
   x = 42,152,860.24/8,499.79
6. Step 6: Final answer
   x = 4,959.28