Finding the Fourth Proportional to 33,557.31, 50,374.85 and 18,005.31

Step by Step Solution

1. Step 1: Write the proportion equation
   33,557.31 : 50,374.85 = 18,005.31 : x
2. Step 2: Convert to fraction form
   33,557.31/50,374.85 = 18,005.31/x
3. Step 3: Cross multiply
   33,557.31x = 50,374.85 × 18,005.31
4. Step 4: Simplify right side
   33,557.31x = 907,014,790.45
5. Step 5: Solve for x
   x = 907,014,790.45/33,557.31
6. Step 6: Final answer
   x = 27,028.83