Finding the Fourth Proportional to 22,489.61, 31,038.38 and 13,058.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,489.61 : 31,038.38 = 13,058.16 : x
2. Step 2: Convert to fraction form
   22,489.61/31,038.38 = 13,058.16/x
3. Step 3: Cross multiply
   22,489.61x = 31,038.38 × 13,058.16
4. Step 4: Simplify right side
   22,489.61x = 405,304,066.89
5. Step 5: Solve for x
   x = 405,304,066.89/22,489.61
6. Step 6: Final answer
   x = 18,021.84