Finding the Fourth Proportional to 22,389.37, 30,897.58 and 12,829.07

Step by Step Solution

1. Step 1: Write the proportion equation
   22,389.37 : 30,897.58 = 12,829.07 : x
2. Step 2: Convert to fraction form
   22,389.37/30,897.58 = 12,829.07/x
3. Step 3: Cross multiply
   22,389.37x = 30,897.58 × 12,829.07
4. Step 4: Simplify right side
   22,389.37x = 396,387,062.16
5. Step 5: Solve for x
   x = 396,387,062.16/22,389.37
6. Step 6: Final answer
   x = 17,704.26