Finding the Fourth Proportional to 105,065.39, 144,989.55 and 59,743.37

Step by Step Solution

1. Step 1: Write the proportion equation
   105,065.39 : 144,989.55 = 59,743.37 : x
2. Step 2: Convert to fraction form
   105,065.39/144,989.55 = 59,743.37/x
3. Step 3: Cross multiply
   105,065.39x = 144,989.55 × 59,743.37
4. Step 4: Simplify right side
   105,065.39x = 8,662,164,544.90
5. Step 5: Solve for x
   x = 8,662,164,544.90/105,065.39
6. Step 6: Final answer
   x = 82,445.46