Finding the Fourth Proportional to 105,028.23, 144,951.42 and 59,713.05

Step by Step Solution

1. Step 1: Write the proportion equation
   105,028.23 : 144,951.42 = 59,713.05 : x
2. Step 2: Convert to fraction form
   105,028.23/144,951.42 = 59,713.05/x
3. Step 3: Cross multiply
   105,028.23x = 144,951.42 × 59,713.05
4. Step 4: Simplify right side
   105,028.23x = 8,655,491,390.03
5. Step 5: Solve for x
   x = 8,655,491,390.03/105,028.23
6. Step 6: Final answer
   x = 82,411.09