Finding the Fourth Proportional to 9,436.52, 13,022.52 and 5,457.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,436.52 : 13,022.52 = 5,457.80 : x
2. Step 2: Convert to fraction form
   9,436.52/13,022.52 = 5,457.80/x
3. Step 3: Cross multiply
   9,436.52x = 13,022.52 × 5,457.80
4. Step 4: Simplify right side
   9,436.52x = 71,074,309.66
5. Step 5: Solve for x
   x = 71,074,309.66/9,436.52
6. Step 6: Final answer
   x = 7,531.83