Finding the Fourth Proportional to 31,697.43, 43,742.38 and 18,268.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,697.43 : 43,742.38 = 18,268.59 : x
2. Step 2: Convert to fraction form
   31,697.43/43,742.38 = 18,268.59/x
3. Step 3: Cross multiply
   31,697.43x = 43,742.38 × 18,268.59
4. Step 4: Simplify right side
   31,697.43x = 799,111,512.41
5. Step 5: Solve for x
   x = 799,111,512.41/31,697.43
6. Step 6: Final answer
   x = 25,210.61