Finding the Fourth Proportional to 14,103.72, 21,159.18 and 5,338.71

Step by Step Solution

1. Step 1: Write the proportion equation
   14,103.72 : 21,159.18 = 5,338.71 : x
2. Step 2: Convert to fraction form
   14,103.72/21,159.18 = 5,338.71/x
3. Step 3: Cross multiply
   14,103.72x = 21,159.18 × 5,338.71
4. Step 4: Simplify right side
   14,103.72x = 112,962,725.86
5. Step 5: Solve for x
   x = 112,962,725.86/14,103.72
6. Step 6: Final answer
   x = 8,009.43