Finding the Fourth Proportional to 6,405.12, 8,839.32 and 4,046.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,405.12 : 8,839.32 = 4,046.88 : x
2. Step 2: Convert to fraction form
   6,405.12/8,839.32 = 4,046.88/x
3. Step 3: Cross multiply
   6,405.12x = 8,839.32 × 4,046.88
4. Step 4: Simplify right side
   6,405.12x = 35,771,667.32
5. Step 5: Solve for x
   x = 35,771,667.32/6,405.12
6. Step 6: Final answer
   x = 5,584.86