Finding the Fourth Proportional to 31,665.27, 43,698.53 and 18,238.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,665.27 : 43,698.53 = 18,238.94 : x
2. Step 2: Convert to fraction form
   31,665.27/43,698.53 = 18,238.94/x
3. Step 3: Cross multiply
   31,665.27x = 43,698.53 × 18,238.94
4. Step 4: Simplify right side
   31,665.27x = 797,014,693.86
5. Step 5: Solve for x
   x = 797,014,693.86/31,665.27
6. Step 6: Final answer
   x = 25,170.00