Finding the Fourth Proportional to 243,918.30, 365,786.54 and 83,949.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,918.30 : 365,786.54 = 83,949.50 : x
2. Step 2: Convert to fraction form
   243,918.30/365,786.54 = 83,949.50/x
3. Step 3: Cross multiply
   243,918.30x = 365,786.54 × 83,949.50
4. Step 4: Simplify right side
   243,918.30x = 30,707,597,139.73
5. Step 5: Solve for x
   x = 30,707,597,139.73/243,918.30
6. Step 6: Final answer
   x = 125,892.96