Finding the Fourth Proportional to 627,910.32, 866,498.06 and 356,003.44

Step by Step Solution

1. Step 1: Write the proportion equation
   627,910.32 : 866,498.06 = 356,003.44 : x
2. Step 2: Convert to fraction form
   627,910.32/866,498.06 = 356,003.44/x
3. Step 3: Cross multiply
   627,910.32x = 866,498.06 × 356,003.44
4. Step 4: Simplify right side
   627,910.32x = 308,476,290,113.33
5. Step 5: Solve for x
   x = 308,476,290,113.33/627,910.32
6. Step 6: Final answer
   x = 491,274.44