Finding the Fourth Proportional to 5,641.58, 8,477.39 and 5,286.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,641.58 : 8,477.39 = 5,286.89 : x
2. Step 2: Convert to fraction form
   5,641.58/8,477.39 = 5,286.89/x
3. Step 3: Cross multiply
   5,641.58x = 8,477.39 × 5,286.89
4. Step 4: Simplify right side
   5,641.58x = 44,819,062.83
5. Step 5: Solve for x
   x = 44,819,062.83/5,641.58
6. Step 6: Final answer
   x = 7,944.41