Finding the Fourth Proportional to 31,020.03, 42,808.10 and 19,076.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,020.03 : 42,808.10 = 19,076.31 : x
2. Step 2: Convert to fraction form
   31,020.03/42,808.10 = 19,076.31/x
3. Step 3: Cross multiply
   31,020.03x = 42,808.10 × 19,076.31
4. Step 4: Simplify right side
   31,020.03x = 816,620,490.73
5. Step 5: Solve for x
   x = 816,620,490.73/31,020.03
6. Step 6: Final answer
   x = 26,325.59