Finding the Fourth Proportional to 9,436.62, 13,022.87 and 5,404.19

Step by Step Solution

1. Step 1: Write the proportion equation
   9,436.62 : 13,022.87 = 5,404.19 : x
2. Step 2: Convert to fraction form
   9,436.62/13,022.87 = 5,404.19/x
3. Step 3: Cross multiply
   9,436.62x = 13,022.87 × 5,404.19
4. Step 4: Simplify right side
   9,436.62x = 70,378,012.22
5. Step 5: Solve for x
   x = 70,378,012.22/9,436.62
6. Step 6: Final answer
   x = 7,457.97