Finding the Fourth Proportional to 384,327.72, 530,396.82 and 214,561.80

Step by Step Solution

1. Step 1: Write the proportion equation
   384,327.72 : 530,396.82 = 214,561.80 : x
2. Step 2: Convert to fraction form
   384,327.72/530,396.82 = 214,561.80/x
3. Step 3: Cross multiply
   384,327.72x = 530,396.82 × 214,561.80
4. Step 4: Simplify right side
   384,327.72x = 113,802,896,413.48
5. Step 5: Solve for x
   x = 113,802,896,413.48/384,327.72
6. Step 6: Final answer
   x = 296,109.00