Finding the Fourth Proportional to 22,216.17, 30,658.28 and 13,268.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,216.17 : 30,658.28 = 13,268.91 : x
2. Step 2: Convert to fraction form
   22,216.17/30,658.28 = 13,268.91/x
3. Step 3: Cross multiply
   22,216.17x = 30,658.28 × 13,268.91
4. Step 4: Simplify right side
   22,216.17x = 406,801,958.07
5. Step 5: Solve for x
   x = 406,801,958.07/22,216.17
6. Step 6: Final answer
   x = 18,311.08