Finding the Fourth Proportional to 105,942.96, 146,047.32 and 74,012.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,942.96 : 146,047.32 = 74,012.76 : x
2. Step 2: Convert to fraction form
   105,942.96/146,047.32 = 74,012.76/x
3. Step 3: Cross multiply
   105,942.96x = 146,047.32 × 74,012.76
4. Step 4: Simplify right side
   105,942.96x = 10,809,365,243.80
5. Step 5: Solve for x
   x = 10,809,365,243.80/105,942.96
6. Step 6: Final answer
   x = 102,030.05