Finding the Fourth Proportional to 8,919.94, 12,309.62 and 4,941.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,919.94 : 12,309.62 = 4,941.12 : x
2. Step 2: Convert to fraction form
   8,919.94/12,309.62 = 4,941.12/x
3. Step 3: Cross multiply
   8,919.94x = 12,309.62 × 4,941.12
4. Step 4: Simplify right side
   8,919.94x = 60,823,309.57
5. Step 5: Solve for x
   x = 60,823,309.57/8,919.94
6. Step 6: Final answer
   x = 6,818.80