Finding the Fourth Proportional to 368,667.18, 508,798.98 and 225,522.45

Step by Step Solution

1. Step 1: Write the proportion equation
   368,667.18 : 508,798.98 = 225,522.45 : x
2. Step 2: Convert to fraction form
   368,667.18/508,798.98 = 225,522.45/x
3. Step 3: Cross multiply
   368,667.18x = 508,798.98 × 225,522.45
4. Step 4: Simplify right side
   368,667.18x = 114,745,592,527.10
5. Step 5: Solve for x
   x = 114,745,592,527.10/368,667.18
6. Step 6: Final answer
   x = 311,244.39