Finding the Fourth Proportional to 31,085.49, 46,647.68 and 12,617.49

Step by Step Solution

1. Step 1: Write the proportion equation
   31,085.49 : 46,647.68 = 12,617.49 : x
2. Step 2: Convert to fraction form
   31,085.49/46,647.68 = 12,617.49/x
3. Step 3: Cross multiply
   31,085.49x = 46,647.68 × 12,617.49
4. Step 4: Simplify right side
   31,085.49x = 588,576,635.92
5. Step 5: Solve for x
   x = 588,576,635.92/31,085.49
6. Step 6: Final answer
   x = 18,934.13