Finding the Fourth Proportional to 12,663.36, 17,474.88 and 7,074.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,663.36 : 17,474.88 = 7,074.24 : x
2. Step 2: Convert to fraction form
   12,663.36/17,474.88 = 7,074.24/x
3. Step 3: Cross multiply
   12,663.36x = 17,474.88 × 7,074.24
4. Step 4: Simplify right side
   12,663.36x = 123,621,495.09
5. Step 5: Solve for x
   x = 123,621,495.09/12,663.36
6. Step 6: Final answer
   x = 9,762.14