Finding the Fourth Proportional to 12,733.48, 17,571.30 and 7,145.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,733.48 : 17,571.30 = 7,145.32 : x
2. Step 2: Convert to fraction form
   12,733.48/17,571.30 = 7,145.32/x
3. Step 3: Cross multiply
   12,733.48x = 17,571.30 × 7,145.32
4. Step 4: Simplify right side
   12,733.48x = 125,552,561.32
5. Step 5: Solve for x
   x = 125,552,561.32/12,733.48
6. Step 6: Final answer
   x = 9,860.04