Finding the Fourth Proportional to 8,912.58, 12,299.61 and 4,934.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,912.58 : 12,299.61 = 4,934.04 : x
2. Step 2: Convert to fraction form
   8,912.58/12,299.61 = 4,934.04/x
3. Step 3: Cross multiply
   8,912.58x = 12,299.61 × 4,934.04
4. Step 4: Simplify right side
   8,912.58x = 60,686,767.72
5. Step 5: Solve for x
   x = 60,686,767.72/8,912.58
6. Step 6: Final answer
   x = 6,809.11