Finding the Fourth Proportional to 31,729.43, 43,786.62 and 17,389.83

Step by Step Solution

1. Step 1: Write the proportion equation
   31,729.43 : 43,786.62 = 17,389.83 : x
2. Step 2: Convert to fraction form
   31,729.43/43,786.62 = 17,389.83/x
3. Step 3: Cross multiply
   31,729.43x = 43,786.62 × 17,389.83
4. Step 4: Simplify right side
   31,729.43x = 761,441,823.34
5. Step 5: Solve for x
   x = 761,441,823.34/31,729.43
6. Step 6: Final answer
   x = 23,997.97