Finding the Fourth Proportional to 105,851.88, 146,076.21 and 58,105.62

Step by Step Solution

1. Step 1: Write the proportion equation
   105,851.88 : 146,076.21 = 58,105.62 : x
2. Step 2: Convert to fraction form
   105,851.88/146,076.21 = 58,105.62/x
3. Step 3: Cross multiply
   105,851.88x = 146,076.21 × 58,105.62
4. Step 4: Simplify right side
   105,851.88x = 8,487,848,749.30
5. Step 5: Solve for x
   x = 8,487,848,749.30/105,851.88
6. Step 6: Final answer
   x = 80,186.09