Finding the Fourth Proportional to 17,666.86, 24,380.27 and 9,709.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,666.86 : 24,380.27 = 9,709.60 : x
2. Step 2: Convert to fraction form
   17,666.86/24,380.27 = 9,709.60/x
3. Step 3: Cross multiply
   17,666.86x = 24,380.27 × 9,709.60
4. Step 4: Simplify right side
   17,666.86x = 236,722,546.34
5. Step 5: Solve for x
   x = 236,722,546.34/17,666.86
6. Step 6: Final answer
   x = 13,399.24