Finding the Fourth Proportional to 18,339.21, 25,308.71 and 10,381.27

Step by Step Solution

1. Step 1: Write the proportion equation
   18,339.21 : 25,308.71 = 10,381.27 : x
2. Step 2: Convert to fraction form
   18,339.21/25,308.71 = 10,381.27/x
3. Step 3: Cross multiply
   18,339.21x = 25,308.71 × 10,381.27
4. Step 4: Simplify right side
   18,339.21x = 262,736,551.86
5. Step 5: Solve for x
   x = 262,736,551.86/18,339.21
6. Step 6: Final answer
   x = 14,326.49