Finding the Fourth Proportional to 647,607.30, 971,404.47 and 363,297.30

Step by Step Solution

1. Step 1: Write the proportion equation
   647,607.30 : 971,404.47 = 363,297.30 : x
2. Step 2: Convert to fraction form
   647,607.30/971,404.47 = 363,297.30/x
3. Step 3: Cross multiply
   647,607.30x = 971,404.47 × 363,297.30
4. Step 4: Simplify right side
   647,607.30x = 352,908,621,158.93
5. Step 5: Solve for x
   x = 352,908,621,158.93/647,607.30
6. Step 6: Final answer
   x = 544,942.31