Finding the Fourth Proportional to 9,436.68, 13,022.87 and 5,458.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,436.68 : 13,022.87 = 5,458.05 : x
2. Step 2: Convert to fraction form
   9,436.68/13,022.87 = 5,458.05/x
3. Step 3: Cross multiply
   9,436.68x = 13,022.87 × 5,458.05
4. Step 4: Simplify right side
   9,436.68x = 71,079,448.31
5. Step 5: Solve for x
   x = 71,079,448.31/9,436.68
6. Step 6: Final answer
   x = 7,532.25