Finding the Fourth Proportional to 105,771.89, 145,962.68 and 58,024.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,771.89 : 145,962.68 = 58,024.82 : x
2. Step 2: Convert to fraction form
   105,771.89/145,962.68 = 58,024.82/x
3. Step 3: Cross multiply
   105,771.89x = 145,962.68 × 58,024.82
4. Step 4: Simplify right side
   105,771.89x = 8,469,458,308.50
5. Step 5: Solve for x
   x = 8,469,458,308.50/105,771.89
6. Step 6: Final answer
   x = 80,072.86