Finding the Fourth Proportional to 105,863.13, 146,084.55 and 58,116.18

Step by Step Solution

1. Step 1: Write the proportion equation
   105,863.13 : 146,084.55 = 58,116.18 : x
2. Step 2: Convert to fraction form
   105,863.13/146,084.55 = 58,116.18/x
3. Step 3: Cross multiply
   105,863.13x = 146,084.55 × 58,116.18
4. Step 4: Simplify right side
   105,863.13x = 8,489,876,003.02
5. Step 5: Solve for x
   x = 8,489,876,003.02/105,863.13
6. Step 6: Final answer
   x = 80,196.72