Finding the Fourth Proportional to 8,979.54, 12,393.78 and 5,830.26

Step by Step Solution

1. Step 1: Write the proportion equation
   8,979.54 : 12,393.78 = 5,830.26 : x
2. Step 2: Convert to fraction form
   8,979.54/12,393.78 = 5,830.26/x
3. Step 3: Cross multiply
   8,979.54x = 12,393.78 × 5,830.26
4. Step 4: Simplify right side
   8,979.54x = 72,258,959.78
5. Step 5: Solve for x
   x = 72,258,959.78/8,979.54
6. Step 6: Final answer
   x = 8,047.07