Finding the Fourth Proportional to 9,327.88, 12,871.40 and 5,789.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,327.88 : 12,871.40 = 5,789.80 : x
2. Step 2: Convert to fraction form
   9,327.88/12,871.40 = 5,789.80/x
3. Step 3: Cross multiply
   9,327.88x = 12,871.40 × 5,789.80
4. Step 4: Simplify right side
   9,327.88x = 74,522,831.72
5. Step 5: Solve for x
   x = 74,522,831.72/9,327.88
6. Step 6: Final answer
   x = 7,989.26