Finding the Fourth Proportional to 105,898.52, 146,132.72 and 58,154.96

Step by Step Solution

1. Step 1: Write the proportion equation
   105,898.52 : 146,132.72 = 58,154.96 : x
2. Step 2: Convert to fraction form
   105,898.52/146,132.72 = 58,154.96/x
3. Step 3: Cross multiply
   105,898.52x = 146,132.72 × 58,154.96
4. Step 4: Simplify right side
   105,898.52x = 8,498,342,486.29
5. Step 5: Solve for x
   x = 8,498,342,486.29/105,898.52
6. Step 6: Final answer
   x = 80,249.87