Finding the Fourth Proportional to 9,231.37, 12,737.69 and 5,453.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,231.37 : 12,737.69 = 5,453.12 : x
2. Step 2: Convert to fraction form
   9,231.37/12,737.69 = 5,453.12/x
3. Step 3: Cross multiply
   9,231.37x = 12,737.69 × 5,453.12
4. Step 4: Simplify right side
   9,231.37x = 69,460,177.12
5. Step 5: Solve for x
   x = 69,460,177.12/9,231.37
6. Step 6: Final answer
   x = 7,524.36