Finding the Fourth Proportional to 105,590.73, 145,718.83 and 57,844.06

Step by Step Solution

1. Step 1: Write the proportion equation
   105,590.73 : 145,718.83 = 57,844.06 : x
2. Step 2: Convert to fraction form
   105,590.73/145,718.83 = 57,844.06/x
3. Step 3: Cross multiply
   105,590.73x = 145,718.83 × 57,844.06
4. Step 4: Simplify right side
   105,590.73x = 8,428,969,273.33
5. Step 5: Solve for x
   x = 8,428,969,273.33/105,590.73
6. Step 6: Final answer
   x = 79,826.79