Finding the Fourth Proportional to 462,847.82, 638,547.38 and 290,664.50

Step by Step Solution

1. Step 1: Write the proportion equation
   462,847.82 : 638,547.38 = 290,664.50 : x
2. Step 2: Convert to fraction form
   462,847.82/638,547.38 = 290,664.50/x
3. Step 3: Cross multiply
   462,847.82x = 638,547.38 × 290,664.50
4. Step 4: Simplify right side
   462,847.82x = 185,603,054,934.01
5. Step 5: Solve for x
   x = 185,603,054,934.01/462,847.82
6. Step 6: Final answer
   x = 401,002.33