Finding the Fourth Proportional to 22,240.94, 30,687.33 and 13,291.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,240.94 : 30,687.33 = 13,291.34 : x
2. Step 2: Convert to fraction form
   22,240.94/30,687.33 = 13,291.34/x
3. Step 3: Cross multiply
   22,240.94x = 30,687.33 × 13,291.34
4. Step 4: Simplify right side
   22,240.94x = 407,875,736.72
5. Step 5: Solve for x
   x = 407,875,736.72/22,240.94
6. Step 6: Final answer
   x = 18,338.96