Finding the Fourth Proportional to 8,959.42, 12,363.06 and 4,979.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,959.42 : 12,363.06 = 4,979.89 : x
2. Step 2: Convert to fraction form
   8,959.42/12,363.06 = 4,979.89/x
3. Step 3: Cross multiply
   8,959.42x = 12,363.06 × 4,979.89
4. Step 4: Simplify right side
   8,959.42x = 61,566,678.86
5. Step 5: Solve for x
   x = 61,566,678.86/8,959.42
6. Step 6: Final answer
   x = 6,871.73