Finding the Fourth Proportional to 626,083.30, 863,661.72 and 381,142.54

Step by Step Solution

1. Step 1: Write the proportion equation
   626,083.30 : 863,661.72 = 381,142.54 : x
2. Step 2: Convert to fraction form
   626,083.30/863,661.72 = 381,142.54/x
3. Step 3: Cross multiply
   626,083.30x = 863,661.72 × 381,142.54
4. Step 4: Simplify right side
   626,083.30x = 329,178,221,661.57
5. Step 5: Solve for x
   x = 329,178,221,661.57/626,083.30
6. Step 6: Final answer
   x = 525,773.84