Finding the Fourth Proportional to 105,688.83, 146,043.87 and 76,958.59

Step by Step Solution

1. Step 1: Write the proportion equation
   105,688.83 : 146,043.87 = 76,958.59 : x
2. Step 2: Convert to fraction form
   105,688.83/146,043.87 = 76,958.59/x
3. Step 3: Cross multiply
   105,688.83x = 146,043.87 × 76,958.59
4. Step 4: Simplify right side
   105,688.83x = 11,239,331,090.71
5. Step 5: Solve for x
   x = 11,239,331,090.71/105,688.83
6. Step 6: Final answer
   x = 106,343.61