Finding the Fourth Proportional to 52,362.21, 72,260.15 and 28,489.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,362.21 : 72,260.15 = 28,489.05 : x
2. Step 2: Convert to fraction form
   52,362.21/72,260.15 = 28,489.05/x
3. Step 3: Cross multiply
   52,362.21x = 72,260.15 × 28,489.05
4. Step 4: Simplify right side
   52,362.21x = 2,058,622,665.06
5. Step 5: Solve for x
   x = 2,058,622,665.06/52,362.21
6. Step 6: Final answer
   x = 39,315.05