Finding the Fourth Proportional to 7,667.30, 10,578.12 and 5,681.18

Step by Step Solution

1. Step 1: Write the proportion equation
   7,667.30 : 10,578.12 = 5,681.18 : x
2. Step 2: Convert to fraction form
   7,667.30/10,578.12 = 5,681.18/x
3. Step 3: Cross multiply
   7,667.30x = 10,578.12 × 5,681.18
4. Step 4: Simplify right side
   7,667.30x = 60,096,203.78
5. Step 5: Solve for x
   x = 60,096,203.78/7,667.30
6. Step 6: Final answer
   x = 7,837.99