Finding the Fourth Proportional to 16,158.57, 22,298.53 and 8,988.45

Step by Step Solution

1. Step 1: Write the proportion equation
   16,158.57 : 22,298.53 = 8,988.45 : x
2. Step 2: Convert to fraction form
   16,158.57/22,298.53 = 8,988.45/x
3. Step 3: Cross multiply
   16,158.57x = 22,298.53 × 8,988.45
4. Step 4: Simplify right side
   16,158.57x = 200,429,221.98
5. Step 5: Solve for x
   x = 200,429,221.98/16,158.57
6. Step 6: Final answer
   x = 12,403.90