Finding the Fourth Proportional to 31,561.18, 43,570.22 and 19,628.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,561.18 : 43,570.22 = 19,628.37 : x
2. Step 2: Convert to fraction form
   31,561.18/43,570.22 = 19,628.37/x
3. Step 3: Cross multiply
   31,561.18x = 43,570.22 × 19,628.37
4. Step 4: Simplify right side
   31,561.18x = 855,212,399.14
5. Step 5: Solve for x
   x = 855,212,399.14/31,561.18
6. Step 6: Final answer
   x = 27,096.97