Finding the Fourth Proportional to 132,945.30, 199,414.71 and 54,039.96

Step by Step Solution

1. Step 1: Write the proportion equation
   132,945.30 : 199,414.71 = 54,039.96 : x
2. Step 2: Convert to fraction form
   132,945.30/199,414.71 = 54,039.96/x
3. Step 3: Cross multiply
   132,945.30x = 199,414.71 × 54,039.96
4. Step 4: Simplify right side
   132,945.30x = 10,776,362,951.81
5. Step 5: Solve for x
   x = 10,776,362,951.81/132,945.30
6. Step 6: Final answer
   x = 81,058.62