Finding the Fourth Proportional to 14,533.29, 21,769.56 and 8,686.71

Step by Step Solution

1. Step 1: Write the proportion equation
   14,533.29 : 21,769.56 = 8,686.71 : x
2. Step 2: Convert to fraction form
   14,533.29/21,769.56 = 8,686.71/x
3. Step 3: Cross multiply
   14,533.29x = 21,769.56 × 8,686.71
4. Step 4: Simplify right side
   14,533.29x = 189,105,854.55
5. Step 5: Solve for x
   x = 189,105,854.55/14,533.29
6. Step 6: Final answer
   x = 13,011.91