Finding the Fourth Proportional to 8,800.31, 12,144.43 and 4,821.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,800.31 : 12,144.43 = 4,821.58 : x
2. Step 2: Convert to fraction form
   8,800.31/12,144.43 = 4,821.58/x
3. Step 3: Cross multiply
   8,800.31x = 12,144.43 × 4,821.58
4. Step 4: Simplify right side
   8,800.31x = 58,555,293.69
5. Step 5: Solve for x
   x = 58,555,293.69/8,800.31
6. Step 6: Final answer
   x = 6,653.77