Finding the Fourth Proportional to 105,794.74, 146,005.98 and 58,057.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,794.74 : 146,005.98 = 58,057.42 : x
2. Step 2: Convert to fraction form
   105,794.74/146,005.98 = 58,057.42/x
3. Step 3: Cross multiply
   105,794.74x = 146,005.98 × 58,057.42
4. Step 4: Simplify right side
   105,794.74x = 8,476,730,503.37
5. Step 5: Solve for x
   x = 8,476,730,503.37/105,794.74
6. Step 6: Final answer
   x = 80,124.31