Finding the Fourth Proportional to 16,225.60, 22,333.12 and 13,542.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,225.60 : 22,333.12 = 13,542.72 : x
2. Step 2: Convert to fraction form
   16,225.60/22,333.12 = 13,542.72/x
3. Step 3: Cross multiply
   16,225.60x = 22,333.12 × 13,542.72
4. Step 4: Simplify right side
   16,225.60x = 302,451,190.89
5. Step 5: Solve for x
   x = 302,451,190.89/16,225.60
6. Step 6: Final answer
   x = 18,640.37