Finding the Fourth Proportional to 105,820.43, 146,033.42 and 58,072.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,820.43 : 146,033.42 = 58,072.82 : x
2. Step 2: Convert to fraction form
   105,820.43/146,033.42 = 58,072.82/x
3. Step 3: Cross multiply
   105,820.43x = 146,033.42 × 58,072.82
4. Step 4: Simplify right side
   105,820.43x = 8,480,571,493.11
5. Step 5: Solve for x
   x = 8,480,571,493.11/105,820.43
6. Step 6: Final answer
   x = 80,141.16