Finding the Fourth Proportional to 22,369.52, 30,870.51 and 12,161.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,369.52 : 30,870.51 = 12,161.22 : x
2. Step 2: Convert to fraction form
   22,369.52/30,870.51 = 12,161.22/x
3. Step 3: Cross multiply
   22,369.52x = 30,870.51 × 12,161.22
4. Step 4: Simplify right side
   22,369.52x = 375,423,063.62
5. Step 5: Solve for x
   x = 375,423,063.62/22,369.52
6. Step 6: Final answer
   x = 16,782.80