Finding the Fourth Proportional to 10,238.72, 15,361.32 and 3,664.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,238.72 : 15,361.32 = 3,664.80 : x
2. Step 2: Convert to fraction form
   10,238.72/15,361.32 = 3,664.80/x
3. Step 3: Cross multiply
   10,238.72x = 15,361.32 × 3,664.80
4. Step 4: Simplify right side
   10,238.72x = 56,296,165.54
5. Step 5: Solve for x
   x = 56,296,165.54/10,238.72
6. Step 6: Final answer
   x = 5,498.36