Finding the Fourth Proportional to 31,017.03, 42,803.96 and 19,073.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,017.03 : 42,803.96 = 19,073.31 : x
2. Step 2: Convert to fraction form
   31,017.03/42,803.96 = 19,073.31/x
3. Step 3: Cross multiply
   31,017.03x = 42,803.96 × 19,073.31
4. Step 4: Simplify right side
   31,017.03x = 816,413,102.94
5. Step 5: Solve for x
   x = 816,413,102.94/31,017.03
6. Step 6: Final answer
   x = 26,321.45