Finding the Fourth Proportional to 31,017.55, 42,790.49 and 19,073.83

Step by Step Solution

1. Step 1: Write the proportion equation
   31,017.55 : 42,790.49 = 19,073.83 : x
2. Step 2: Convert to fraction form
   31,017.55/42,790.49 = 19,073.83/x
3. Step 3: Cross multiply
   31,017.55x = 42,790.49 × 19,073.83
4. Step 4: Simplify right side
   31,017.55x = 816,178,329.53
5. Step 5: Solve for x
   x = 816,178,329.53/31,017.55
6. Step 6: Final answer
   x = 26,313.44