Finding the Fourth Proportional to 9,179.43, 12,667.59 and 4,987.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,179.43 : 12,667.59 = 4,987.68 : x
2. Step 2: Convert to fraction form
   9,179.43/12,667.59 = 4,987.68/x
3. Step 3: Cross multiply
   9,179.43x = 12,667.59 × 4,987.68
4. Step 4: Simplify right side
   9,179.43x = 63,181,885.29
5. Step 5: Solve for x
   x = 63,181,885.29/9,179.43
6. Step 6: Final answer
   x = 6,882.99