Finding the Fourth Proportional to 23,086, 31,858.68 and 13,151.92

Step by Step Solution

1. Step 1: Write the proportion equation
   23,086 : 31,858.68 = 13,151.92 : x
2. Step 2: Convert to fraction form
   23,086/31,858.68 = 13,151.92/x
3. Step 3: Cross multiply
   23,086x = 31,858.68 × 13,151.92
4. Step 4: Simplify right side
   23,086x = 419,002,810.67
5. Step 5: Solve for x
   x = 419,002,810.67/23,086
6. Step 6: Final answer
   x = 18,149.65