Finding the Fourth Proportional to 31,568.86, 43,563.33 and 19,631.86

Step by Step Solution

1. Step 1: Write the proportion equation
   31,568.86 : 43,563.33 = 19,631.86 : x
2. Step 2: Convert to fraction form
   31,568.86/43,563.33 = 19,631.86/x
3. Step 3: Cross multiply
   31,568.86x = 43,563.33 × 19,631.86
4. Step 4: Simplify right side
   31,568.86x = 855,229,195.69
5. Step 5: Solve for x
   x = 855,229,195.69/31,568.86
6. Step 6: Final answer
   x = 27,090.91