Finding the Fourth Proportional to 105,929.20, 146,181.96 and 58,185.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105,929.20 : 146,181.96 = 58,185.52 : x
2. Step 2: Convert to fraction form
   105,929.20/146,181.96 = 58,185.52/x
3. Step 3: Cross multiply
   105,929.20x = 146,181.96 × 58,185.52
4. Step 4: Simplify right side
   105,929.20x = 8,505,673,357.22
5. Step 5: Solve for x
   x = 8,505,673,357.22/105,929.20
6. Step 6: Final answer
   x = 80,295.83