Finding the Fourth Proportional to 105,849.84, 146,074.60 and 58,107.60

Step by Step Solution

1. Step 1: Write the proportion equation
   105,849.84 : 146,074.60 = 58,107.60 : x
2. Step 2: Convert to fraction form
   105,849.84/146,074.60 = 58,107.60/x
3. Step 3: Cross multiply
   105,849.84x = 146,074.60 × 58,107.60
4. Step 4: Simplify right side
   105,849.84x = 8,488,044,426.96
5. Step 5: Solve for x
   x = 8,488,044,426.96/105,849.84
6. Step 6: Final answer
   x = 80,189.49