Finding the Fourth Proportional to 10,280.63, 15,424.41 and 4,729.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,280.63 : 15,424.41 = 4,729.80 : x
2. Step 2: Convert to fraction form
   10,280.63/15,424.41 = 4,729.80/x
3. Step 3: Cross multiply
   10,280.63x = 15,424.41 × 4,729.80
4. Step 4: Simplify right side
   10,280.63x = 72,954,367.43
5. Step 5: Solve for x
   x = 72,954,367.43/10,280.63
6. Step 6: Final answer
   x = 7,096.29