Finding the Fourth Proportional to 12,728.99, 17,565.15 and 7,063.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,728.99 : 17,565.15 = 7,063.37 : x
2. Step 2: Convert to fraction form
   12,728.99/17,565.15 = 7,063.37/x
3. Step 3: Cross multiply
   12,728.99x = 17,565.15 × 7,063.37
4. Step 4: Simplify right side
   12,728.99x = 124,069,153.56
5. Step 5: Solve for x
   x = 124,069,153.56/12,728.99
6. Step 6: Final answer
   x = 9,746.98