Finding the Fourth Proportional to 384,078.69, 530,028.18 and 214,312.83

Step by Step Solution

1. Step 1: Write the proportion equation
   384,078.69 : 530,028.18 = 214,312.83 : x
2. Step 2: Convert to fraction form
   384,078.69/530,028.18 = 214,312.83/x
3. Step 3: Cross multiply
   384,078.69x = 530,028.18 × 214,312.83
4. Step 4: Simplify right side
   384,078.69x = 113,591,839,235.55
5. Step 5: Solve for x
   x = 113,591,839,235.55/384,078.69
6. Step 6: Final answer
   x = 295,751.48