Finding the Fourth Proportional to 401,225, 553,690.50 and 222,377

Step by Step Solution

1. Step 1: Write the proportion equation
   401,225 : 553,690.50 = 222,377 : x
2. Step 2: Convert to fraction form
   401,225/553,690.50 = 222,377/x
3. Step 3: Cross multiply
   401,225x = 553,690.50 × 222,377
4. Step 4: Simplify right side
   401,225x = 123,128,032,318.50
5. Step 5: Solve for x
   x = 123,128,032,318.50/401,225
6. Step 6: Final answer
   x = 306,880.26