Finding the Fourth Proportional to 105,891.69, 146,143.70 and 60,563.39

Step by Step Solution

1. Step 1: Write the proportion equation
   105,891.69 : 146,143.70 = 60,563.39 : x
2. Step 2: Convert to fraction form
   105,891.69/146,143.70 = 60,563.39/x
3. Step 3: Cross multiply
   105,891.69x = 146,143.70 × 60,563.39
4. Step 4: Simplify right side
   105,891.69x = 8,850,956,865.61
5. Step 5: Solve for x
   x = 8,850,956,865.61/105,891.69
6. Step 6: Final answer
   x = 83,585.00