Finding the Fourth Proportional to 22,389.81, 30,897.28 and 12,180.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,389.81 : 30,897.28 = 12,180.52 : x
2. Step 2: Convert to fraction form
   22,389.81/30,897.28 = 12,180.52/x
3. Step 3: Cross multiply
   22,389.81x = 30,897.28 × 12,180.52
4. Step 4: Simplify right side
   22,389.81x = 376,344,990.83
5. Step 5: Solve for x
   x = 376,344,990.83/22,389.81
6. Step 6: Final answer
   x = 16,808.76