Finding the Fourth Proportional to 105,054.44, 144,974.61 and 57,307.37

Step by Step Solution

1. Step 1: Write the proportion equation
   105,054.44 : 144,974.61 = 57,307.37 : x
2. Step 2: Convert to fraction form
   105,054.44/144,974.61 = 57,307.37/x
3. Step 3: Cross multiply
   105,054.44x = 144,974.61 × 57,307.37
4. Step 4: Simplify right side
   105,054.44x = 8,308,112,891.00
5. Step 5: Solve for x
   x = 8,308,112,891.00/105,054.44
6. Step 6: Final answer
   x = 79,083.89