Finding the Fourth Proportional to 20,449.42, 30,680.61 and 7,301.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,449.42 : 30,680.61 = 7,301.50 : x
2. Step 2: Convert to fraction form
   20,449.42/30,680.61 = 7,301.50/x
3. Step 3: Cross multiply
   20,449.42x = 30,680.61 × 7,301.50
4. Step 4: Simplify right side
   20,449.42x = 224,014,473.92
5. Step 5: Solve for x
   x = 224,014,473.92/20,449.42
6. Step 6: Final answer
   x = 10,954.56