Finding the Fourth Proportional to 105,864.98, 146,084.99 and 58,116.69

Step by Step Solution

1. Step 1: Write the proportion equation
   105,864.98 : 146,084.99 = 58,116.69 : x
2. Step 2: Convert to fraction form
   105,864.98/146,084.99 = 58,116.69/x
3. Step 3: Cross multiply
   105,864.98x = 146,084.99 × 58,116.69
4. Step 4: Simplify right side
   105,864.98x = 8,489,975,786.90
5. Step 5: Solve for x
   x = 8,489,975,786.90/105,864.98
6. Step 6: Final answer
   x = 80,196.27