Finding the Fourth Proportional to 105,353.33, 145,387.59 and 57,606.71

Step by Step Solution

1. Step 1: Write the proportion equation
   105,353.33 : 145,387.59 = 57,606.71 : x
2. Step 2: Convert to fraction form
   105,353.33/145,387.59 = 57,606.71/x
3. Step 3: Cross multiply
   105,353.33x = 145,387.59 × 57,606.71
4. Step 4: Simplify right side
   105,353.33x = 8,375,300,734.73
5. Step 5: Solve for x
   x = 8,375,300,734.73/105,353.33
6. Step 6: Final answer
   x = 79,497.26