Finding the Fourth Proportional to 8,959.91, 12,364.72 and 4,981.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,959.91 : 12,364.72 = 4,981.39 : x
2. Step 2: Convert to fraction form
   8,959.91/12,364.72 = 4,981.39/x
3. Step 3: Cross multiply
   8,959.91x = 12,364.72 × 4,981.39
4. Step 4: Simplify right side
   8,959.91x = 61,593,449.20
5. Step 5: Solve for x
   x = 61,593,449.20/8,959.91
6. Step 6: Final answer
   x = 6,874.34