Finding the Fourth Proportional to 454,499.56, 627,230.82 and 253,297

Step by Step Solution

1. Step 1: Write the proportion equation
   454,499.56 : 627,230.82 = 253,297 : x
2. Step 2: Convert to fraction form
   454,499.56/627,230.82 = 253,297/x
3. Step 3: Cross multiply
   454,499.56x = 627,230.82 × 253,297
4. Step 4: Simplify right side
   454,499.56x = 158,875,685,013.54
5. Step 5: Solve for x
   x = 158,875,685,013.54/454,499.56
6. Step 6: Final answer
   x = 349,561.80