Finding the Fourth Proportional to 8,564.37, 12,847.54 and 3,298.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,564.37 : 12,847.54 = 3,298.15 : x
2. Step 2: Convert to fraction form
   8,564.37/12,847.54 = 3,298.15/x
3. Step 3: Cross multiply
   8,564.37x = 12,847.54 × 3,298.15
4. Step 4: Simplify right side
   8,564.37x = 42,373,097.56
5. Step 5: Solve for x
   x = 42,373,097.56/8,564.37
6. Step 6: Final answer
   x = 4,947.61