Finding the Fourth Proportional to 105,976.48, 146,250.66 and 60,669

Step by Step Solution

1. Step 1: Write the proportion equation
   105,976.48 : 146,250.66 = 60,669 : x
2. Step 2: Convert to fraction form
   105,976.48/146,250.66 = 60,669/x
3. Step 3: Cross multiply
   105,976.48x = 146,250.66 × 60,669
4. Step 4: Simplify right side
   105,976.48x = 8,872,881,291.54
5. Step 5: Solve for x
   x = 8,872,881,291.54/105,976.48
6. Step 6: Final answer
   x = 83,725.00