Finding the Fourth Proportional to 52,188.98, 72,020.94 and 28,315.84

Step by Step Solution

1. Step 1: Write the proportion equation
   52,188.98 : 72,020.94 = 28,315.84 : x
2. Step 2: Convert to fraction form
   52,188.98/72,020.94 = 28,315.84/x
3. Step 3: Cross multiply
   52,188.98x = 72,020.94 × 28,315.84
4. Step 4: Simplify right side
   52,188.98x = 2,039,333,413.69
5. Step 5: Solve for x
   x = 2,039,333,413.69/52,188.98
6. Step 6: Final answer
   x = 39,075.94