Finding the Fourth Proportional to 314,789.00, 472,010.36 and 215,061.80

Step by Step Solution

1. Step 1: Write the proportion equation
   314,789.00 : 472,010.36 = 215,061.80 : x
2. Step 2: Convert to fraction form
   314,789.00/472,010.36 = 215,061.80/x
3. Step 3: Cross multiply
   314,789.00x = 472,010.36 × 215,061.80
4. Step 4: Simplify right side
   314,789.00x = 101,511,394,204.89
5. Step 5: Solve for x
   x = 101,511,394,204.89/314,789.00
6. Step 6: Final answer
   x = 322,474.41