Finding the Fourth Proportional to 16,045.56, 22,143.15 and 8,971.92

Step by Step Solution

1. Step 1: Write the proportion equation
   16,045.56 : 22,143.15 = 8,971.92 : x
2. Step 2: Convert to fraction form
   16,045.56/22,143.15 = 8,971.92/x
3. Step 3: Cross multiply
   16,045.56x = 22,143.15 × 8,971.92
4. Step 4: Simplify right side
   16,045.56x = 198,666,570.35
5. Step 5: Solve for x
   x = 198,666,570.35/16,045.56
6. Step 6: Final answer
   x = 12,381.40