Finding the Fourth Proportional to 12,663.48, 17,475.30 and 7,075.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,663.48 : 17,475.30 = 7,075.56 : x
2. Step 2: Convert to fraction form
   12,663.48/17,475.30 = 7,075.56/x
3. Step 3: Cross multiply
   12,663.48x = 17,475.30 × 7,075.56
4. Step 4: Simplify right side
   12,663.48x = 123,647,533.67
5. Step 5: Solve for x
   x = 123,647,533.67/12,663.48
6. Step 6: Final answer
   x = 9,764.10