Finding the Fourth Proportional to 105,834.72, 146,054.68 and 60,520.08

Step by Step Solution

1. Step 1: Write the proportion equation
   105,834.72 : 146,054.68 = 60,520.08 : x
2. Step 2: Convert to fraction form
   105,834.72/146,054.68 = 60,520.08/x
3. Step 3: Cross multiply
   105,834.72x = 146,054.68 × 60,520.08
4. Step 4: Simplify right side
   105,834.72x = 8,839,240,917.97
5. Step 5: Solve for x
   x = 8,839,240,917.97/105,834.72
6. Step 6: Final answer
   x = 83,519.29