Finding the Fourth Proportional to 52,991.37, 79,413.23 and 39,828.39

Step by Step Solution

1. Step 1: Write the proportion equation
   52,991.37 : 79,413.23 = 39,828.39 : x
2. Step 2: Convert to fraction form
   52,991.37/79,413.23 = 39,828.39/x
3. Step 3: Cross multiply
   52,991.37x = 79,413.23 × 39,828.39
4. Step 4: Simplify right side
   52,991.37x = 3,162,900,896.46
5. Step 5: Solve for x
   x = 3,162,900,896.46/52,991.37
6. Step 6: Final answer
   x = 59,687.09