Finding the Fourth Proportional to 535,076.82, 738,429.30 and 320,175.72

Step by Step Solution

1. Step 1: Write the proportion equation
   535,076.82 : 738,429.30 = 320,175.72 : x
2. Step 2: Convert to fraction form
   535,076.82/738,429.30 = 320,175.72/x
3. Step 3: Cross multiply
   535,076.82x = 738,429.30 × 320,175.72
4. Step 4: Simplify right side
   535,076.82x = 236,427,132,796.60
5. Step 5: Solve for x
   x = 236,427,132,796.60/535,076.82
6. Step 6: Final answer
   x = 441,856.43