Finding the Fourth Proportional to 12,444.50, 17,180.00 and 9,605.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,444.50 : 17,180.00 = 9,605.76 : x
2. Step 2: Convert to fraction form
   12,444.50/17,180.00 = 9,605.76/x
3. Step 3: Cross multiply
   12,444.50x = 17,180.00 × 9,605.76
4. Step 4: Simplify right side
   12,444.50x = 165,026,908.77
5. Step 5: Solve for x
   x = 165,026,908.77/12,444.50
6. Step 6: Final answer
   x = 13,261.04