Finding the Fourth Proportional to 17,666.78, 24,380.15 and 9,709.52

Step by Step Solution

1. Step 1: Write the proportion equation
   17,666.78 : 24,380.15 = 9,709.52 : x
2. Step 2: Convert to fraction form
   17,666.78/24,380.15 = 9,709.52/x
3. Step 3: Cross multiply
   17,666.78x = 24,380.15 × 9,709.52
4. Step 4: Simplify right side
   17,666.78x = 236,719,383.58
5. Step 5: Solve for x
   x = 236,719,383.58/17,666.78
6. Step 6: Final answer
   x = 13,399.13