Finding the Fourth Proportional to 333,811.52, 498,289.05 and 309,142.16

Step by Step Solution

1. Step 1: Write the proportion equation
   333,811.52 : 498,289.05 = 309,142.16 : x
2. Step 2: Convert to fraction form
   333,811.52/498,289.05 = 309,142.16/x
3. Step 3: Cross multiply
   333,811.52x = 498,289.05 × 309,142.16
4. Step 4: Simplify right side
   333,811.52x = 154,042,150,729.90
5. Step 5: Solve for x
   x = 154,042,150,729.90/333,811.52
6. Step 6: Final answer
   x = 461,464.46