Finding the Fourth Proportional to 10,993.49, 16,480.38 and 3,971.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,993.49 : 16,480.38 = 3,971.86 : x
2. Step 2: Convert to fraction form
   10,993.49/16,480.38 = 3,971.86/x
3. Step 3: Cross multiply
   10,993.49x = 16,480.38 × 3,971.86
4. Step 4: Simplify right side
   10,993.49x = 65,457,720.91
5. Step 5: Solve for x
   x = 65,457,720.91/10,993.49
6. Step 6: Final answer
   x = 5,954.22