Finding the Fourth Proportional to 31,033.18, 42,834.58 and 18,293.74

Step by Step Solution

1. Step 1: Write the proportion equation
   31,033.18 : 42,834.58 = 18,293.74 : x
2. Step 2: Convert to fraction form
   31,033.18/42,834.58 = 18,293.74/x
3. Step 3: Cross multiply
   31,033.18x = 42,834.58 × 18,293.74
4. Step 4: Simplify right side
   31,033.18x = 783,604,669.53
5. Step 5: Solve for x
   x = 783,604,669.53/31,033.18
6. Step 6: Final answer
   x = 25,250.54