Finding the Fourth Proportional to 12,522.72, 18,786.24 and 3,758.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,522.72 : 18,786.24 = 3,758.16 : x
2. Step 2: Convert to fraction form
   12,522.72/18,786.24 = 3,758.16/x
3. Step 3: Cross multiply
   12,522.72x = 18,786.24 × 3,758.16
4. Step 4: Simplify right side
   12,522.72x = 70,601,695.72
5. Step 5: Solve for x
   x = 70,601,695.72/12,522.72
6. Step 6: Final answer
   x = 5,637.89