Finding the Fourth Proportional to 12,510.72, 18,768.24 and 3,746.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,510.72 : 18,768.24 = 3,746.16 : x
2. Step 2: Convert to fraction form
   12,510.72/18,768.24 = 3,746.16/x
3. Step 3: Cross multiply
   12,510.72x = 18,768.24 × 3,746.16
4. Step 4: Simplify right side
   12,510.72x = 70,308,829.96
5. Step 5: Solve for x
   x = 70,308,829.96/12,510.72
6. Step 6: Final answer
   x = 5,619.89