Finding the Fourth Proportional to 31,185.97, 46,773.30 and 8,993.89

Step by Step Solution

1. Step 1: Write the proportion equation
   31,185.97 : 46,773.30 = 8,993.89 : x
2. Step 2: Convert to fraction form
   31,185.97/46,773.30 = 8,993.89/x
3. Step 3: Cross multiply
   31,185.97x = 46,773.30 × 8,993.89
4. Step 4: Simplify right side
   31,185.97x = 420,673,915.14
5. Step 5: Solve for x
   x = 420,673,915.14/31,185.97
6. Step 6: Final answer
   x = 13,489.20