Finding the Fourth Proportional to 31,119.54, 42,948.83 and 19,017.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,119.54 : 42,948.83 = 19,017.54 : x
2. Step 2: Convert to fraction form
   31,119.54/42,948.83 = 19,017.54/x
3. Step 3: Cross multiply
   31,119.54x = 42,948.83 × 19,017.54
4. Step 4: Simplify right side
   31,119.54x = 816,781,092.48
5. Step 5: Solve for x
   x = 816,781,092.48/31,119.54
6. Step 6: Final answer
   x = 26,246.57