Finding the Fourth Proportional to 106,415.28, 146,844.72 and 58,665.96

Step by Step Solution

1. Step 1: Write the proportion equation
   106,415.28 : 146,844.72 = 58,665.96 : x
2. Step 2: Convert to fraction form
   106,415.28/146,844.72 = 58,665.96/x
3. Step 3: Cross multiply
   106,415.28x = 146,844.72 × 58,665.96
4. Step 4: Simplify right side
   106,415.28x = 8,614,786,469.73
5. Step 5: Solve for x
   x = 8,614,786,469.73/106,415.28
6. Step 6: Final answer
   x = 80,954.41