Finding the Fourth Proportional to 105,865.30, 146,095.77 and 58,123

Step by Step Solution

1. Step 1: Write the proportion equation
   105,865.30 : 146,095.77 = 58,123 : x
2. Step 2: Convert to fraction form
   105,865.30/146,095.77 = 58,123/x
3. Step 3: Cross multiply
   105,865.30x = 146,095.77 × 58,123
4. Step 4: Simplify right side
   105,865.30x = 8,491,524,439.71
5. Step 5: Solve for x
   x = 8,491,524,439.71/105,865.30
6. Step 6: Final answer
   x = 80,210.65