Finding the Fourth Proportional to 22,081.25, 30,472.61 and 12,145.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,081.25 : 30,472.61 = 12,145.25 : x
2. Step 2: Convert to fraction form
   22,081.25/30,472.61 = 12,145.25/x
3. Step 3: Cross multiply
   22,081.25x = 30,472.61 × 12,145.25
4. Step 4: Simplify right side
   22,081.25x = 370,097,405.88
5. Step 5: Solve for x
   x = 370,097,405.88/22,081.25
6. Step 6: Final answer
   x = 16,760.71