Finding the Fourth Proportional to 14,506.31, 20,018.71 and 8,218.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,506.31 : 20,018.71 = 8,218.69 : x
2. Step 2: Convert to fraction form
   14,506.31/20,018.71 = 8,218.69/x
3. Step 3: Cross multiply
   14,506.31x = 20,018.71 × 8,218.69
4. Step 4: Simplify right side
   14,506.31x = 164,527,531.92
5. Step 5: Solve for x
   x = 164,527,531.92/14,506.31
6. Step 6: Final answer
   x = 11,341.79