Finding the Fourth Proportional to 333,808.52, 498,284.57 and 309,139.16

Step by Step Solution

1. Step 1: Write the proportion equation
   333,808.52 : 498,284.57 = 309,139.16 : x
2. Step 2: Convert to fraction form
   333,808.52/498,284.57 = 309,139.16/x
3. Step 3: Cross multiply
   333,808.52x = 498,284.57 × 309,139.16
4. Step 4: Simplify right side
   333,808.52x = 154,039,271,692.19
5. Step 5: Solve for x
   x = 154,039,271,692.19/333,808.52
6. Step 6: Final answer
   x = 461,459.98