Finding the Fourth Proportional to 10,651.56, 15,978.06 and 3,628.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,651.56 : 15,978.06 = 3,628.68 : x
2. Step 2: Convert to fraction form
   10,651.56/15,978.06 = 3,628.68/x
3. Step 3: Cross multiply
   10,651.56x = 15,978.06 × 3,628.68
4. Step 4: Simplify right side
   10,651.56x = 57,979,266.76
5. Step 5: Solve for x
   x = 57,979,266.76/10,651.56
6. Step 6: Final answer
   x = 5,443.27