Finding the Fourth Proportional to 333,978.20, 501,028.05 and 109,276.10

Step by Step Solution

1. Step 1: Write the proportion equation
   333,978.20 : 501,028.05 = 109,276.10 : x
2. Step 2: Convert to fraction form
   333,978.20/501,028.05 = 109,276.10/x
3. Step 3: Cross multiply
   333,978.20x = 501,028.05 × 109,276.10
4. Step 4: Simplify right side
   333,978.20x = 54,750,391,294.61
5. Step 5: Solve for x
   x = 54,750,391,294.61/333,978.20
6. Step 6: Final answer
   x = 163,934.03