Finding the Fourth Proportional to 27,405.36, 37,782.72 and 21,413.52

Step by Step Solution

1. Step 1: Write the proportion equation
   27,405.36 : 37,782.72 = 21,413.52 : x
2. Step 2: Convert to fraction form
   27,405.36/37,782.72 = 21,413.52/x
3. Step 3: Cross multiply
   27,405.36x = 37,782.72 × 21,413.52
4. Step 4: Simplify right side
   27,405.36x = 809,061,030.37
5. Step 5: Solve for x
   x = 809,061,030.37/27,405.36
6. Step 6: Final answer
   x = 29,522.00