Finding the Fourth Proportional to 105,751.56, 145,936.82 and 60,443.60

Step by Step Solution

1. Step 1: Write the proportion equation
   105,751.56 : 145,936.82 = 60,443.60 : x
2. Step 2: Convert to fraction form
   105,751.56/145,936.82 = 60,443.60/x
3. Step 3: Cross multiply
   105,751.56x = 145,936.82 × 60,443.60
4. Step 4: Simplify right side
   105,751.56x = 8,820,946,773.35
5. Step 5: Solve for x
   x = 8,820,946,773.35/105,751.56
6. Step 6: Final answer
   x = 83,411.98