Finding the Fourth Proportional to 290,422.17, 400,608.72 and 182,805.39

Step by Step Solution

1. Step 1: Write the proportion equation
   290,422.17 : 400,608.72 = 182,805.39 : x
2. Step 2: Convert to fraction form
   290,422.17/400,608.72 = 182,805.39/x
3. Step 3: Cross multiply
   290,422.17x = 400,608.72 × 182,805.39
4. Step 4: Simplify right side
   290,422.17x = 73,233,433,297.00
5. Step 5: Solve for x
   x = 73,233,433,297.00/290,422.17
6. Step 6: Final answer
   x = 252,161.99