Finding the Fourth Proportional to 8,443.56, 11,656.56 and 5,257.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,443.56 : 11,656.56 = 5,257.83 : x
2. Step 2: Convert to fraction form
   8,443.56/11,656.56 = 5,257.83/x
3. Step 3: Cross multiply
   8,443.56x = 11,656.56 × 5,257.83
4. Step 4: Simplify right side
   8,443.56x = 61,288,184.58
5. Step 5: Solve for x
   x = 61,288,184.58/8,443.56
6. Step 6: Final answer
   x = 7,258.57