Finding the Fourth Proportional to 6,667.16, 9,997.47 and 3,894.53

Step by Step Solution

1. Step 1: Write the proportion equation
   6,667.16 : 9,997.47 = 3,894.53 : x
2. Step 2: Convert to fraction form
   6,667.16/9,997.47 = 3,894.53/x
3. Step 3: Cross multiply
   6,667.16x = 9,997.47 × 3,894.53
4. Step 4: Simplify right side
   6,667.16x = 38,935,396.85
5. Step 5: Solve for x
   x = 38,935,396.85/6,667.16
6. Step 6: Final answer
   x = 5,839.88