Finding the Fourth Proportional to 105,833.40, 146,049.93 and 58,086.87

Step by Step Solution

1. Step 1: Write the proportion equation
   105,833.40 : 146,049.93 = 58,086.87 : x
2. Step 2: Convert to fraction form
   105,833.40/146,049.93 = 58,086.87/x
3. Step 3: Cross multiply
   105,833.40x = 146,049.93 × 58,086.87
4. Step 4: Simplify right side
   105,833.40x = 8,483,583,297.42
5. Step 5: Solve for x
   x = 8,483,583,297.42/105,833.40
6. Step 6: Final answer
   x = 80,159.79