Finding the Fourth Proportional to 12,510.72, 18,763.38 and 3,743.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,510.72 : 18,763.38 = 3,743.28 : x
2. Step 2: Convert to fraction form
   12,510.72/18,763.38 = 3,743.28/x
3. Step 3: Cross multiply
   12,510.72x = 18,763.38 × 3,743.28
4. Step 4: Simplify right side
   12,510.72x = 70,236,585.09
5. Step 5: Solve for x
   x = 70,236,585.09/12,510.72
6. Step 6: Final answer
   x = 5,614.11