Finding the Fourth Proportional to 22,243.90, 30,693.54 and 13,289.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,243.90 : 30,693.54 = 13,289.50 : x
2. Step 2: Convert to fraction form
   22,243.90/30,693.54 = 13,289.50/x
3. Step 3: Cross multiply
   22,243.90x = 30,693.54 × 13,289.50
4. Step 4: Simplify right side
   22,243.90x = 407,901,646.36
5. Step 5: Solve for x
   x = 407,901,646.36/22,243.90
6. Step 6: Final answer
   x = 18,337.69