Finding the Fourth Proportional to 105,912.66, 146,160.48 and 58,167

Step by Step Solution

1. Step 1: Write the proportion equation
   105,912.66 : 146,160.48 = 58,167 : x
2. Step 2: Convert to fraction form
   105,912.66/146,160.48 = 58,167/x
3. Step 3: Cross multiply
   105,912.66x = 146,160.48 × 58,167
4. Step 4: Simplify right side
   105,912.66x = 8,501,716,640.16
5. Step 5: Solve for x
   x = 8,501,716,640.16/105,912.66
6. Step 6: Final answer
   x = 80,271.01