Finding the Fourth Proportional to 17,156.80, 23,676.12 and 9,603

Step by Step Solution

1. Step 1: Write the proportion equation
   17,156.80 : 23,676.12 = 9,603 : x
2. Step 2: Convert to fraction form
   17,156.80/23,676.12 = 9,603/x
3. Step 3: Cross multiply
   17,156.80x = 23,676.12 × 9,603
4. Step 4: Simplify right side
   17,156.80x = 227,361,780.36
5. Step 5: Solve for x
   x = 227,361,780.36/17,156.80
6. Step 6: Final answer
   x = 13,251.99