Finding the Fourth Proportional to 12,861.63, 17,725.37 and 10,609.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,861.63 : 17,725.37 = 10,609.83 : x
2. Step 2: Convert to fraction form
   12,861.63/17,725.37 = 10,609.83/x
3. Step 3: Cross multiply
   12,861.63x = 17,725.37 × 10,609.83
4. Step 4: Simplify right side
   12,861.63x = 188,063,109.34
5. Step 5: Solve for x
   x = 188,063,109.34/12,861.63
6. Step 6: Final answer
   x = 14,622.03