Finding the Fourth Proportional to 22,389.36, 30,897.32 and 12,317.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,389.36 : 30,897.32 = 12,317.59 : x
2. Step 2: Convert to fraction form
   22,389.36/30,897.32 = 12,317.59/x
3. Step 3: Cross multiply
   22,389.36x = 30,897.32 × 12,317.59
4. Step 4: Simplify right side
   22,389.36x = 380,580,303.78
5. Step 5: Solve for x
   x = 380,580,303.78/22,389.36
6. Step 6: Final answer
   x = 16,998.27