Finding the Fourth Proportional to 10,646.69, 15,955.88 and 5,648.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,646.69 : 15,955.88 = 5,648.03 : x
2. Step 2: Convert to fraction form
   10,646.69/15,955.88 = 5,648.03/x
3. Step 3: Cross multiply
   10,646.69x = 15,955.88 × 5,648.03
4. Step 4: Simplify right side
   10,646.69x = 90,119,288.92
5. Step 5: Solve for x
   x = 90,119,288.92/10,646.69
6. Step 6: Final answer
   x = 8,464.54