Finding the Fourth Proportional to 17,031.24, 23,503.56 and 9,478.08

Step by Step Solution

1. Step 1: Write the proportion equation
   17,031.24 : 23,503.56 = 9,478.08 : x
2. Step 2: Convert to fraction form
   17,031.24/23,503.56 = 9,478.08/x
3. Step 3: Cross multiply
   17,031.24x = 23,503.56 × 9,478.08
4. Step 4: Simplify right side
   17,031.24x = 222,768,621.96
5. Step 5: Solve for x
   x = 222,768,621.96/17,031.24
6. Step 6: Final answer
   x = 13,080.00