Finding the Fourth Proportional to 16,118.60, 22,242.18 and 9,043.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,118.60 : 22,242.18 = 9,043.72 : x
2. Step 2: Convert to fraction form
   16,118.60/22,242.18 = 9,043.72/x
3. Step 3: Cross multiply
   16,118.60x = 22,242.18 × 9,043.72
4. Step 4: Simplify right side
   16,118.60x = 201,152,048.11
5. Step 5: Solve for x
   x = 201,152,048.11/16,118.60
6. Step 6: Final answer
   x = 12,479.50