Finding the Fourth Proportional to 6,864.62, 9,474.37 and 3,881.39

Step by Step Solution

1. Step 1: Write the proportion equation
   6,864.62 : 9,474.37 = 3,881.39 : x
2. Step 2: Convert to fraction form
   6,864.62/9,474.37 = 3,881.39/x
3. Step 3: Cross multiply
   6,864.62x = 9,474.37 × 3,881.39
4. Step 4: Simplify right side
   6,864.62x = 36,773,667.90
5. Step 5: Solve for x
   x = 36,773,667.90/6,864.62
6. Step 6: Final answer
   x = 5,356.99