Finding the Fourth Proportional to 31,104.50, 46,674.79 and 13,091.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,104.50 : 46,674.79 = 13,091.38 : x
2. Step 2: Convert to fraction form
   31,104.50/46,674.79 = 13,091.38/x
3. Step 3: Cross multiply
   31,104.50x = 46,674.79 × 13,091.38
4. Step 4: Simplify right side
   31,104.50x = 611,037,262.89
5. Step 5: Solve for x
   x = 611,037,262.89/31,104.50
6. Step 6: Final answer
   x = 19,644.66