Finding the Fourth Proportional to 10,981.26, 16,475.31 and 3,190.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981.26 : 16,475.31 = 3,190.10 : x
2. Step 2: Convert to fraction form
   10,981.26/16,475.31 = 3,190.10/x
3. Step 3: Cross multiply
   10,981.26x = 16,475.31 × 3,190.10
4. Step 4: Simplify right side
   10,981.26x = 52,557,804.05
5. Step 5: Solve for x
   x = 52,557,804.05/10,981.26
6. Step 6: Final answer
   x = 4,786.14