Finding the Fourth Proportional to 22,080, 30,470.88 and 12,144

Step by Step Solution

1. Step 1: Write the proportion equation
   22,080 : 30,470.88 = 12,144 : x
2. Step 2: Convert to fraction form
   22,080/30,470.88 = 12,144/x
3. Step 3: Cross multiply
   22,080x = 30,470.88 × 12,144
4. Step 4: Simplify right side
   22,080x = 370,038,366.72
5. Step 5: Solve for x
   x = 370,038,366.72/22,080
6. Step 6: Final answer
   x = 16,758.98