Finding the Fourth Proportional to 228,300.14, 315,142.50 and 204,385.29

Step by Step Solution

1. Step 1: Write the proportion equation
   228,300.14 : 315,142.50 = 204,385.29 : x
2. Step 2: Convert to fraction form
   228,300.14/315,142.50 = 204,385.29/x
3. Step 3: Cross multiply
   228,300.14x = 315,142.50 × 204,385.29
4. Step 4: Simplify right side
   228,300.14x = 64,410,491,253.83
5. Step 5: Solve for x
   x = 64,410,491,253.83/228,300.14
6. Step 6: Final answer
   x = 282,130.76