Finding the Fourth Proportional to 9,431.86, 14,142.37 and 3,889.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,431.86 : 14,142.37 = 3,889.03 : x
2. Step 2: Convert to fraction form
   9,431.86/14,142.37 = 3,889.03/x
3. Step 3: Cross multiply
   9,431.86x = 14,142.37 × 3,889.03
4. Step 4: Simplify right side
   9,431.86x = 55,000,101.20
5. Step 5: Solve for x
   x = 55,000,101.20/9,431.86
6. Step 6: Final answer
   x = 5,831.31