Finding the Fourth Proportional to 22,237.94, 30,683.18 and 13,288.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,237.94 : 30,683.18 = 13,288.34 : x
2. Step 2: Convert to fraction form
   22,237.94/30,683.18 = 13,288.34/x
3. Step 3: Cross multiply
   22,237.94x = 30,683.18 × 13,288.34
4. Step 4: Simplify right side
   22,237.94x = 407,728,528.12
5. Step 5: Solve for x
   x = 407,728,528.12/22,237.94
6. Step 6: Final answer
   x = 18,334.82