Finding the Fourth Proportional to 22,180.32, 30,609 and 12,108.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,180.32 : 30,609 = 12,108.96 : x
2. Step 2: Convert to fraction form
   22,180.32/30,609 = 12,108.96/x
3. Step 3: Cross multiply
   22,180.32x = 30,609 × 12,108.96
4. Step 4: Simplify right side
   22,180.32x = 370,643,156.64
5. Step 5: Solve for x
   x = 370,643,156.64/22,180.32
6. Step 6: Final answer
   x = 16,710.45