Finding the Fourth Proportional to 8,288.56, 12,415.56 and 3,674.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,288.56 : 12,415.56 = 3,674.80 : x
2. Step 2: Convert to fraction form
   8,288.56/12,415.56 = 3,674.80/x
3. Step 3: Cross multiply
   8,288.56x = 12,415.56 × 3,674.80
4. Step 4: Simplify right side
   8,288.56x = 45,624,699.89
5. Step 5: Solve for x
   x = 45,624,699.89/8,288.56
6. Step 6: Final answer
   x = 5,504.54