Finding the Fourth Proportional to 454,612.09, 627,633.48 and 404,171.50

Step by Step Solution

1. Step 1: Write the proportion equation
   454,612.09 : 627,633.48 = 404,171.50 : x
2. Step 2: Convert to fraction form
   454,612.09/627,633.48 = 404,171.50/x
3. Step 3: Cross multiply
   454,612.09x = 627,633.48 × 404,171.50
4. Step 4: Simplify right side
   454,612.09x = 253,671,565,061.82
5. Step 5: Solve for x
   x = 253,671,565,061.82/454,612.09
6. Step 6: Final answer
   x = 557,995.64