Finding the Fourth Proportional to 13,216.72, 18,226.72 and 10,536.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,216.72 : 18,226.72 = 10,536.83 : x
2. Step 2: Convert to fraction form
   13,216.72/18,226.72 = 10,536.83/x
3. Step 3: Cross multiply
   13,216.72x = 18,226.72 × 10,536.83
4. Step 4: Simplify right side
   13,216.72x = 192,051,943.01
5. Step 5: Solve for x
   x = 192,051,943.01/13,216.72
6. Step 6: Final answer
   x = 14,530.98