Finding the Fourth Proportional to 31,989.89, 44,131.71 and 18,553.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,989.89 : 44,131.71 = 18,553.32 : x
2. Step 2: Convert to fraction form
   31,989.89/44,131.71 = 18,553.32/x
3. Step 3: Cross multiply
   31,989.89x = 44,131.71 × 18,553.32
4. Step 4: Simplify right side
   31,989.89x = 818,789,737.78
5. Step 5: Solve for x
   x = 818,789,737.78/31,989.89
6. Step 6: Final answer
   x = 25,595.27