Finding the Fourth Proportional to 105,849.30, 146,073.69 and 58,107

Step by Step Solution

1. Step 1: Write the proportion equation
   105,849.30 : 146,073.69 = 58,107 : x
2. Step 2: Convert to fraction form
   105,849.30/146,073.69 = 58,107/x
3. Step 3: Cross multiply
   105,849.30x = 146,073.69 × 58,107
4. Step 4: Simplify right side
   105,849.30x = 8,487,903,904.83
5. Step 5: Solve for x
   x = 8,487,903,904.83/105,849.30
6. Step 6: Final answer
   x = 80,188.57