Finding the Fourth Proportional to 105,028.36, 144,951.59 and 59,713.18

Step by Step Solution

1. Step 1: Write the proportion equation
   105,028.36 : 144,951.59 = 59,713.18 : x
2. Step 2: Convert to fraction form
   105,028.36/144,951.59 = 59,713.18/x
3. Step 3: Cross multiply
   105,028.36x = 144,951.59 × 59,713.18
4. Step 4: Simplify right side
   105,028.36x = 8,655,520,384.96
5. Step 5: Solve for x
   x = 8,655,520,384.96/105,028.36
6. Step 6: Final answer
   x = 82,411.27