Finding the Fourth Proportional to 415,145.33, 620,443.44 and 303,061.58

Step by Step Solution

1. Step 1: Write the proportion equation
   415,145.33 : 620,443.44 = 303,061.58 : x
2. Step 2: Convert to fraction form
   415,145.33/620,443.44 = 303,061.58/x
3. Step 3: Cross multiply
   415,145.33x = 620,443.44 × 303,061.58
4. Step 4: Simplify right side
   415,145.33x = 188,032,567,315.00
5. Step 5: Solve for x
   x = 188,032,567,315.00/415,145.33
6. Step 6: Final answer
   x = 452,931.91