Finding the Fourth Proportional to 9,419.82, 12,999.99 and 5,441.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,419.82 : 12,999.99 = 5,441.23 : x
2. Step 2: Convert to fraction form
   9,419.82/12,999.99 = 5,441.23/x
3. Step 3: Cross multiply
   9,419.82x = 12,999.99 × 5,441.23
4. Step 4: Simplify right side
   9,419.82x = 70,735,935.59
5. Step 5: Solve for x
   x = 70,735,935.59/9,419.82
6. Step 6: Final answer
   x = 7,509.27