Finding the Fourth Proportional to 9,745.78, 14,620.25 and 3,819.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,745.78 : 14,620.25 = 3,819.45 : x
2. Step 2: Convert to fraction form
   9,745.78/14,620.25 = 3,819.45/x
3. Step 3: Cross multiply
   9,745.78x = 14,620.25 × 3,819.45
4. Step 4: Simplify right side
   9,745.78x = 55,841,346.47
5. Step 5: Solve for x
   x = 55,841,346.47/9,745.78
6. Step 6: Final answer
   x = 5,729.80