Finding the Fourth Proportional to 12,605.24, 17,417.50 and 9,973.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,605.24 : 17,417.50 = 9,973.56 : x
2. Step 2: Convert to fraction form
   12,605.24/17,417.50 = 9,973.56/x
3. Step 3: Cross multiply
   12,605.24x = 17,417.50 × 9,973.56
4. Step 4: Simplify right side
   12,605.24x = 173,714,481.30
5. Step 5: Solve for x
   x = 173,714,481.30/12,605.24
6. Step 6: Final answer
   x = 13,781.13