Finding the Fourth Proportional to 105,999.58, 146,278.94 and 60,677.31

Step by Step Solution

1. Step 1: Write the proportion equation
   105,999.58 : 146,278.94 = 60,677.31 : x
2. Step 2: Convert to fraction form
   105,999.58/146,278.94 = 60,677.31/x
3. Step 3: Cross multiply
   105,999.58x = 146,278.94 × 60,677.31
4. Step 4: Simplify right side
   105,999.58x = 8,875,812,588.85
5. Step 5: Solve for x
   x = 8,875,812,588.85/105,999.58
6. Step 6: Final answer
   x = 83,734.41