Finding the Fourth Proportional to 12,643.52, 17,448.02 and 7,054.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,643.52 : 17,448.02 = 7,054.52 : x
2. Step 2: Convert to fraction form
   12,643.52/17,448.02 = 7,054.52/x
3. Step 3: Cross multiply
   12,643.52x = 17,448.02 × 7,054.52
4. Step 4: Simplify right side
   12,643.52x = 123,087,406.05
5. Step 5: Solve for x
   x = 123,087,406.05/12,643.52
6. Step 6: Final answer
   x = 9,735.22