Finding the Fourth Proportional to 31,441.25, 43,386.98 and 18,009.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,441.25 : 43,386.98 = 18,009.42 : x
2. Step 2: Convert to fraction form
   31,441.25/43,386.98 = 18,009.42/x
3. Step 3: Cross multiply
   31,441.25x = 43,386.98 × 18,009.42
4. Step 4: Simplify right side
   31,441.25x = 781,374,390.38
5. Step 5: Solve for x
   x = 781,374,390.38/31,441.25
6. Step 6: Final answer
   x = 24,851.89