Finding the Fourth Proportional to 8,900.38, 12,282.98 and 5,124.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,900.38 : 12,282.98 = 5,124.09 : x
2. Step 2: Convert to fraction form
   8,900.38/12,282.98 = 5,124.09/x
3. Step 3: Cross multiply
   8,900.38x = 12,282.98 × 5,124.09
4. Step 4: Simplify right side
   8,900.38x = 62,939,107.80
5. Step 5: Solve for x
   x = 62,939,107.80/8,900.38
6. Step 6: Final answer
   x = 7,071.51