Finding the Fourth Proportional to 31,105.25, 46,675.91 and 13,092.13

Step by Step Solution

1. Step 1: Write the proportion equation
   31,105.25 : 46,675.91 = 13,092.13 : x
2. Step 2: Convert to fraction form
   31,105.25/46,675.91 = 13,092.13/x
3. Step 3: Cross multiply
   31,105.25x = 46,675.91 × 13,092.13
4. Step 4: Simplify right side
   31,105.25x = 611,086,997.63
5. Step 5: Solve for x
   x = 611,086,997.63/31,105.25
6. Step 6: Final answer
   x = 19,645.79