Finding the Fourth Proportional to 367,063.40, 512,839 and 367,063.40

Step by Step Solution

1. Step 1: Write the proportion equation
   367,063.40 : 512,839 = 367,063.40 : x
2. Step 2: Convert to fraction form
   367,063.40/512,839 = 367,063.40/x
3. Step 3: Cross multiply
   367,063.40x = 512,839 × 367,063.40
4. Step 4: Simplify right side
   367,063.40x = 188,244,426,992.60
5. Step 5: Solve for x
   x = 188,244,426,992.60/367,063.40
6. Step 6: Final answer
   x = 512,839