Finding the Fourth Proportional to 8,929.05, 12,321.63 and 4,950.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,929.05 : 12,321.63 = 4,950.12 : x
2. Step 2: Convert to fraction form
   8,929.05/12,321.63 = 4,950.12/x
3. Step 3: Cross multiply
   8,929.05x = 12,321.63 × 4,950.12
4. Step 4: Simplify right side
   8,929.05x = 60,993,547.10
5. Step 5: Solve for x
   x = 60,993,547.10/8,929.05
6. Step 6: Final answer
   x = 6,830.91