Finding the Fourth Proportional to 22,291.47, 30,756.09 and 13,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,291.47 : 30,756.09 = 13,789.50 : x
2. Step 2: Convert to fraction form
   22,291.47/30,756.09 = 13,789.50/x
3. Step 3: Cross multiply
   22,291.47x = 30,756.09 × 13,789.50
4. Step 4: Simplify right side
   22,291.47x = 424,111,103.06
5. Step 5: Solve for x
   x = 424,111,103.06/22,291.47
6. Step 6: Final answer
   x = 19,025.71