Finding the Fourth Proportional to 22,116.52, 30,520.78 and 12,180.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,116.52 : 30,520.78 = 12,180.52 : x
2. Step 2: Convert to fraction form
   22,116.52/30,520.78 = 12,180.52/x
3. Step 3: Cross multiply
   22,116.52x = 30,520.78 × 12,180.52
4. Step 4: Simplify right side
   22,116.52x = 371,758,971.21
5. Step 5: Solve for x
   x = 371,758,971.21/22,116.52
6. Step 6: Final answer
   x = 16,809.11