Finding the Fourth Proportional to 12,979.72, 19,475.94 and 8,048.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,979.72 : 19,475.94 = 8,048.08 : x
2. Step 2: Convert to fraction form
   12,979.72/19,475.94 = 8,048.08/x
3. Step 3: Cross multiply
   12,979.72x = 19,475.94 × 8,048.08
4. Step 4: Simplify right side
   12,979.72x = 156,743,923.20
5. Step 5: Solve for x
   x = 156,743,923.20/12,979.72
6. Step 6: Final answer
   x = 12,076.06