Finding the Fourth Proportional to 55,145.31, 82,755.02 and 54,942.41

Step by Step Solution

1. Step 1: Write the proportion equation
   55,145.31 : 82,755.02 = 54,942.41 : x
2. Step 2: Convert to fraction form
   55,145.31/82,755.02 = 54,942.41/x
3. Step 3: Cross multiply
   55,145.31x = 82,755.02 × 54,942.41
4. Step 4: Simplify right side
   55,145.31x = 4,546,759,961.98
5. Step 5: Solve for x
   x = 4,546,759,961.98/55,145.31
6. Step 6: Final answer
   x = 82,450.53