Finding the Fourth Proportional to 9,209.56, 12,704.84 and 5,671.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,209.56 : 12,704.84 = 5,671.48 : x
2. Step 2: Convert to fraction form
   9,209.56/12,704.84 = 5,671.48/x
3. Step 3: Cross multiply
   9,209.56x = 12,704.84 × 5,671.48
4. Step 4: Simplify right side
   9,209.56x = 72,055,245.96
5. Step 5: Solve for x
   x = 72,055,245.96/9,209.56
6. Step 6: Final answer
   x = 7,823.96