Finding the Fourth Proportional to 10,058.82, 15,020.49 and 8,213.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,058.82 : 15,020.49 = 8,213.54 : x
2. Step 2: Convert to fraction form
   10,058.82/15,020.49 = 8,213.54/x
3. Step 3: Cross multiply
   10,058.82x = 15,020.49 × 8,213.54
4. Step 4: Simplify right side
   10,058.82x = 123,371,395.43
5. Step 5: Solve for x
   x = 123,371,395.43/10,058.82
6. Step 6: Final answer
   x = 12,265.00