Finding the Fourth Proportional to 22,412.30, 30,928.56 and 12,340.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,412.30 : 30,928.56 = 12,340.52 : x
2. Step 2: Convert to fraction form
   22,412.30/30,928.56 = 12,340.52/x
3. Step 3: Cross multiply
   22,412.30x = 30,928.56 × 12,340.52
4. Step 4: Simplify right side
   22,412.30x = 381,674,451.55
5. Step 5: Solve for x
   x = 381,674,451.55/22,412.30
6. Step 6: Final answer
   x = 17,029.69