Finding the Fourth Proportional to 105,483.49, 145,568.59 and 57,735.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,483.49 : 145,568.59 = 57,735.82 : x
2. Step 2: Convert to fraction form
   105,483.49/145,568.59 = 57,735.82/x
3. Step 3: Cross multiply
   105,483.49x = 145,568.59 × 57,735.82
4. Step 4: Simplify right side
   105,483.49x = 8,404,521,909.89
5. Step 5: Solve for x
   x = 8,404,521,909.89/105,483.49
6. Step 6: Final answer
   x = 79,676.18