Finding the Fourth Proportional to 9,412.48, 12,989.52 and 5,433.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,412.48 : 12,989.52 = 5,433.52 : x
2. Step 2: Convert to fraction form
   9,412.48/12,989.52 = 5,433.52/x
3. Step 3: Cross multiply
   9,412.48x = 12,989.52 × 5,433.52
4. Step 4: Simplify right side
   9,412.48x = 70,578,816.71
5. Step 5: Solve for x
   x = 70,578,816.71/9,412.48
6. Step 6: Final answer
   x = 7,498.43