Finding the Fourth Proportional to 105,890.05, 146,141.43 and 60,561.74

Step by Step Solution

1. Step 1: Write the proportion equation
   105,890.05 : 146,141.43 = 60,561.74 : x
2. Step 2: Convert to fraction form
   105,890.05/146,141.43 = 60,561.74/x
3. Step 3: Cross multiply
   105,890.05x = 146,141.43 × 60,561.74
4. Step 4: Simplify right side
   105,890.05x = 8,850,579,662.11
5. Step 5: Solve for x
   x = 8,850,579,662.11/105,890.05
6. Step 6: Final answer
   x = 83,582.73