Finding the Fourth Proportional to 19,885.89, 29,821.25 and 8,786.52

Step by Step Solution

1. Step 1: Write the proportion equation
   19,885.89 : 29,821.25 = 8,786.52 : x
2. Step 2: Convert to fraction form
   19,885.89/29,821.25 = 8,786.52/x
3. Step 3: Cross multiply
   19,885.89x = 29,821.25 × 8,786.52
4. Step 4: Simplify right side
   19,885.89x = 262,025,031.52
5. Step 5: Solve for x
   x = 262,025,031.52/19,885.89
6. Step 6: Final answer
   x = 13,176.43