Finding the Fourth Proportional to 67,085.98, 92,537.49 and 39,843.55

Step by Step Solution

1. Step 1: Write the proportion equation
   67,085.98 : 92,537.49 = 39,843.55 : x
2. Step 2: Convert to fraction form
   67,085.98/92,537.49 = 39,843.55/x
3. Step 3: Cross multiply
   67,085.98x = 92,537.49 × 39,843.55
4. Step 4: Simplify right side
   67,085.98x = 3,687,022,109.69
5. Step 5: Solve for x
   x = 3,687,022,109.69/67,085.98
6. Step 6: Final answer
   x = 54,959.65