Finding the Fourth Proportional to 23,151.69, 31,947.43 and 13,081

Step by Step Solution

1. Step 1: Write the proportion equation
   23,151.69 : 31,947.43 = 13,081 : x
2. Step 2: Convert to fraction form
   23,151.69/31,947.43 = 13,081/x
3. Step 3: Cross multiply
   23,151.69x = 31,947.43 × 13,081
4. Step 4: Simplify right side
   23,151.69x = 417,904,331.83
5. Step 5: Solve for x
   x = 417,904,331.83/23,151.69
6. Step 6: Final answer
   x = 18,050.71