Finding the Fourth Proportional to 105,999.73, 146,276.58 and 58,253.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,999.73 : 146,276.58 = 58,253.02 : x
2. Step 2: Convert to fraction form
   105,999.73/146,276.58 = 58,253.02/x
3. Step 3: Cross multiply
   105,999.73x = 146,276.58 × 58,253.02
4. Step 4: Simplify right side
   105,999.73x = 8,521,052,540.27
5. Step 5: Solve for x
   x = 8,521,052,540.27/105,999.73
6. Step 6: Final answer
   x = 80,387.49