Finding the Fourth Proportional to 6,280.81, 8,667.59 and 3,924.32

Step by Step Solution

1. Step 1: Write the proportion equation
   6,280.81 : 8,667.59 = 3,924.32 : x
2. Step 2: Convert to fraction form
   6,280.81/8,667.59 = 3,924.32/x
3. Step 3: Cross multiply
   6,280.81x = 8,667.59 × 3,924.32
4. Step 4: Simplify right side
   6,280.81x = 34,014,396.79
5. Step 5: Solve for x
   x = 34,014,396.79/6,280.81
6. Step 6: Final answer
   x = 5,415.61