Finding the Fourth Proportional to 6,443.37, 8,888.63 and 4,081.77

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.37 : 8,888.63 = 4,081.77 : x
2. Step 2: Convert to fraction form
   6,443.37/8,888.63 = 4,081.77/x
3. Step 3: Cross multiply
   6,443.37x = 8,888.63 × 4,081.77
4. Step 4: Simplify right side
   6,443.37x = 36,281,322.87
5. Step 5: Solve for x
   x = 36,281,322.87/6,443.37
6. Step 6: Final answer
   x = 5,630.80