Finding the Fourth Proportional to 8,798.30, 12,141.72 and 4,819.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,798.30 : 12,141.72 = 4,819.78 : x
2. Step 2: Convert to fraction form
   8,798.30/12,141.72 = 4,819.78/x
3. Step 3: Cross multiply
   8,798.30x = 12,141.72 × 4,819.78
4. Step 4: Simplify right side
   8,798.30x = 58,520,388.87
5. Step 5: Solve for x
   x = 58,520,388.87/8,798.30
6. Step 6: Final answer
   x = 6,651.33