Finding the Fourth Proportional to 612,443.62, 845,150.10 and 336,799.15

Step by Step Solution

1. Step 1: Write the proportion equation
   612,443.62 : 845,150.10 = 336,799.15 : x
2. Step 2: Convert to fraction form
   612,443.62/845,150.10 = 336,799.15/x
3. Step 3: Cross multiply
   612,443.62x = 845,150.10 × 336,799.15
4. Step 4: Simplify right side
   612,443.62x = 284,645,833,618.42
5. Step 5: Solve for x
   x = 284,645,833,618.42/612,443.62
6. Step 6: Final answer
   x = 464,770.68