Finding the Fourth Proportional to 8,601.21, 12,892.68 and 5,471.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,601.21 : 12,892.68 = 5,471.37 : x
2. Step 2: Convert to fraction form
   8,601.21/12,892.68 = 5,471.37/x
3. Step 3: Cross multiply
   8,601.21x = 12,892.68 × 5,471.37
4. Step 4: Simplify right side
   8,601.21x = 70,540,622.57
5. Step 5: Solve for x
   x = 70,540,622.57/8,601.21
6. Step 6: Final answer
   x = 8,201.24