Finding the Fourth Proportional to 10,405.91, 15,606.30 and 3,008.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,405.91 : 15,606.30 = 3,008.72 : x
2. Step 2: Convert to fraction form
   10,405.91/15,606.30 = 3,008.72/x
3. Step 3: Cross multiply
   10,405.91x = 15,606.30 × 3,008.72
4. Step 4: Simplify right side
   10,405.91x = 46,954,986.94
5. Step 5: Solve for x
   x = 46,954,986.94/10,405.91
6. Step 6: Final answer
   x = 4,512.34