Finding the Fourth Proportional to 9,412.48, 12,989.32 and 5,432.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,412.48 : 12,989.32 = 5,432.82 : x
2. Step 2: Convert to fraction form
   9,412.48/12,989.32 = 5,432.82/x
3. Step 3: Cross multiply
   9,412.48x = 12,989.32 × 5,432.82
4. Step 4: Simplify right side
   9,412.48x = 70,568,637.48
5. Step 5: Solve for x
   x = 70,568,637.48/9,412.48
6. Step 6: Final answer
   x = 7,497.35