Finding the Fourth Proportional to 22,308.77, 30,788.67 and 13,356.27

Step by Step Solution

1. Step 1: Write the proportion equation
   22,308.77 : 30,788.67 = 13,356.27 : x
2. Step 2: Convert to fraction form
   22,308.77/30,788.67 = 13,356.27/x
3. Step 3: Cross multiply
   22,308.77x = 30,788.67 × 13,356.27
4. Step 4: Simplify right side
   22,308.77x = 411,221,789.46
5. Step 5: Solve for x
   x = 411,221,789.46/22,308.77
6. Step 6: Final answer
   x = 18,433.19