Finding the Fourth Proportional to 31,551.82, 43,541.40 and 18,123.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,551.82 : 43,541.40 = 18,123.94 : x
2. Step 2: Convert to fraction form
   31,551.82/43,541.40 = 18,123.94/x
3. Step 3: Cross multiply
   31,551.82x = 43,541.40 × 18,123.94
4. Step 4: Simplify right side
   31,551.82x = 789,141,721.12
5. Step 5: Solve for x
   x = 789,141,721.12/31,551.82
6. Step 6: Final answer
   x = 25,010.97