Finding the Fourth Proportional to 31,687.83, 43,728.93 and 17,540.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,687.83 : 43,728.93 = 17,540.37 : x
2. Step 2: Convert to fraction form
   31,687.83/43,728.93 = 17,540.37/x
3. Step 3: Cross multiply
   31,687.83x = 43,728.93 × 17,540.37
4. Step 4: Simplify right side
   31,687.83x = 767,021,611.90
5. Step 5: Solve for x
   x = 767,021,611.90/31,687.83
6. Step 6: Final answer
   x = 24,205.56