Finding the Fourth Proportional to 31,120.48, 42,932.37 and 19,179.46

Step by Step Solution

1. Step 1: Write the proportion equation
   31,120.48 : 42,932.37 = 19,179.46 : x
2. Step 2: Convert to fraction form
   31,120.48/42,932.37 = 19,179.46/x
3. Step 3: Cross multiply
   31,120.48x = 42,932.37 × 19,179.46
4. Step 4: Simplify right side
   31,120.48x = 823,419,673.12
5. Step 5: Solve for x
   x = 823,419,673.12/31,120.48
6. Step 6: Final answer
   x = 26,459.09