Finding the Fourth Proportional to 22,488.84, 31,038.39 and 13,062.87

Step by Step Solution

1. Step 1: Write the proportion equation
   22,488.84 : 31,038.39 = 13,062.87 : x
2. Step 2: Convert to fraction form
   22,488.84/31,038.39 = 13,062.87/x
3. Step 3: Cross multiply
   22,488.84x = 31,038.39 × 13,062.87
4. Step 4: Simplify right side
   22,488.84x = 405,450,453.58
5. Step 5: Solve for x
   x = 405,450,453.58/22,488.84
6. Step 6: Final answer
   x = 18,028.96