Finding the Fourth Proportional to 16,139.88, 22,271.82 and 9,064.92

Step by Step Solution

1. Step 1: Write the proportion equation
   16,139.88 : 22,271.82 = 9,064.92 : x
2. Step 2: Convert to fraction form
   16,139.88/22,271.82 = 9,064.92/x
3. Step 3: Cross multiply
   16,139.88x = 22,271.82 × 9,064.92
4. Step 4: Simplify right side
   16,139.88x = 201,892,266.55
5. Step 5: Solve for x
   x = 201,892,266.55/16,139.88
6. Step 6: Final answer
   x = 12,508.91