Finding the Fourth Proportional to 16,064.33, 22,168.81 and 8,990.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,064.33 : 22,168.81 = 8,990.76 : x
2. Step 2: Convert to fraction form
   16,064.33/22,168.81 = 8,990.76/x
3. Step 3: Cross multiply
   16,064.33x = 22,168.81 × 8,990.76
4. Step 4: Simplify right side
   16,064.33x = 199,314,294.40
5. Step 5: Solve for x
   x = 199,314,294.40/16,064.33
6. Step 6: Final answer
   x = 12,407.26