Finding the Fourth Proportional to 52,856.56, 79,284.64 and 13,413.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,856.56 : 79,284.64 = 13,413.52 : x
2. Step 2: Convert to fraction form
   52,856.56/79,284.64 = 13,413.52/x
3. Step 3: Cross multiply
   52,856.56x = 79,284.64 × 13,413.52
4. Step 4: Simplify right side
   52,856.56x = 1,063,486,104.33
5. Step 5: Solve for x
   x = 1,063,486,104.33/52,856.56
6. Step 6: Final answer
   x = 20,120.23