Finding the Fourth Proportional to 8,499.64, 12,754.86 and 3,305.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.64 : 12,754.86 = 3,305.56 : x
2. Step 2: Convert to fraction form
   8,499.64/12,754.86 = 3,305.56/x
3. Step 3: Cross multiply
   8,499.64x = 12,754.86 × 3,305.56
4. Step 4: Simplify right side
   8,499.64x = 42,161,955.02
5. Step 5: Solve for x
   x = 42,161,955.02/8,499.64
6. Step 6: Final answer
   x = 4,960.44