Finding the Fourth Proportional to 6,145.78, 8,481.90 and 3,493.59

Step by Step Solution

1. Step 1: Write the proportion equation
   6,145.78 : 8,481.90 = 3,493.59 : x
2. Step 2: Convert to fraction form
   6,145.78/8,481.90 = 3,493.59/x
3. Step 3: Cross multiply
   6,145.78x = 8,481.90 × 3,493.59
4. Step 4: Simplify right side
   6,145.78x = 29,632,262.31
5. Step 5: Solve for x
   x = 29,632,262.31/6,145.78
6. Step 6: Final answer
   x = 4,821.56