Finding the Fourth Proportional to 31,267.30, 43,144.76 and 19,173.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,267.30 : 43,144.76 = 19,173.20 : x
2. Step 2: Convert to fraction form
   31,267.30/43,144.76 = 19,173.20/x
3. Step 3: Cross multiply
   31,267.30x = 43,144.76 × 19,173.20
4. Step 4: Simplify right side
   31,267.30x = 827,223,112.43
5. Step 5: Solve for x
   x = 827,223,112.43/31,267.30
6. Step 6: Final answer
   x = 26,456.49