Finding the Fourth Proportional to 8,560.84, 12,840.72 and 3,627.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,560.84 : 12,840.72 = 3,627.40 : x
2. Step 2: Convert to fraction form
   8,560.84/12,840.72 = 3,627.40/x
3. Step 3: Cross multiply
   8,560.84x = 12,840.72 × 3,627.40
4. Step 4: Simplify right side
   8,560.84x = 46,578,427.73
5. Step 5: Solve for x
   x = 46,578,427.73/8,560.84
6. Step 6: Final answer
   x = 5,440.87