Finding the Fourth Proportional to 22,389, 30,897.28 and 12,317.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,389 : 30,897.28 = 12,317.46 : x
2. Step 2: Convert to fraction form
   22,389/30,897.28 = 12,317.46/x
3. Step 3: Cross multiply
   22,389x = 30,897.28 × 12,317.46
4. Step 4: Simplify right side
   22,389x = 380,576,010.51
5. Step 5: Solve for x
   x = 380,576,010.51/22,389
6. Step 6: Final answer
   x = 16,998.35