Finding the Fourth Proportional to 9,179.28, 12,667.12 and 4,987.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,179.28 : 12,667.12 = 4,987.52 : x
2. Step 2: Convert to fraction form
   9,179.28/12,667.12 = 4,987.52/x
3. Step 3: Cross multiply
   9,179.28x = 12,667.12 × 4,987.52
4. Step 4: Simplify right side
   9,179.28x = 63,177,514.34
5. Step 5: Solve for x
   x = 63,177,514.34/9,179.28
6. Step 6: Final answer
   x = 6,882.62