Finding the Fourth Proportional to 418,243.98, 627,364.71 and 118,724.82

Step by Step Solution

1. Step 1: Write the proportion equation
   418,243.98 : 627,364.71 = 118,724.82 : x
2. Step 2: Convert to fraction form
   418,243.98/627,364.71 = 118,724.82/x
3. Step 3: Cross multiply
   418,243.98x = 627,364.71 × 118,724.82
4. Step 4: Simplify right side
   418,243.98x = 74,483,762,269.10
5. Step 5: Solve for x
   x = 74,483,762,269.10/418,243.98
6. Step 6: Final answer
   x = 178,086.87