Finding the Fourth Proportional to 12,634.72, 18,954.24 and 3,868.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,634.72 : 18,954.24 = 3,868.72 : x
2. Step 2: Convert to fraction form
   12,634.72/18,954.24 = 3,868.72/x
3. Step 3: Cross multiply
   12,634.72x = 18,954.24 × 3,868.72
4. Step 4: Simplify right side
   12,634.72x = 73,328,647.37
5. Step 5: Solve for x
   x = 73,328,647.37/12,634.72
6. Step 6: Final answer
   x = 5,803.74