Finding the Fourth Proportional to 22,488.92, 31,032.96 and 13,058.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,488.92 : 31,032.96 = 13,058.18 : x
2. Step 2: Convert to fraction form
   22,488.92/31,032.96 = 13,058.18/x
3. Step 3: Cross multiply
   22,488.92x = 31,032.96 × 13,058.18
4. Step 4: Simplify right side
   22,488.92x = 405,233,977.61
5. Step 5: Solve for x
   x = 405,233,977.61/22,488.92
6. Step 6: Final answer
   x = 18,019.27