Finding the Fourth Proportional to 14,078.04, 21,150.63 and 8,238.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,078.04 : 21,150.63 = 8,238.72 : x
2. Step 2: Convert to fraction form
   14,078.04/21,150.63 = 8,238.72/x
3. Step 3: Cross multiply
   14,078.04x = 21,150.63 × 8,238.72
4. Step 4: Simplify right side
   14,078.04x = 174,254,118.39
5. Step 5: Solve for x
   x = 174,254,118.39/14,078.04
6. Step 6: Final answer
   x = 12,377.73