Finding the Fourth Proportional to 8,797.78, 12,140.72 and 4,819.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,797.78 : 12,140.72 = 4,819.06 : x
2. Step 2: Convert to fraction form
   8,797.78/12,140.72 = 4,819.06/x
3. Step 3: Cross multiply
   8,797.78x = 12,140.72 × 4,819.06
4. Step 4: Simplify right side
   8,797.78x = 58,506,858.12
5. Step 5: Solve for x
   x = 58,506,858.12/8,797.78
6. Step 6: Final answer
   x = 6,650.18