Finding the Fourth Proportional to 12,642.92, 17,446.02 and 7,054.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,642.92 : 17,446.02 = 7,054.28 : x
2. Step 2: Convert to fraction form
   12,642.92/17,446.02 = 7,054.28/x
3. Step 3: Cross multiply
   12,642.92x = 17,446.02 × 7,054.28
4. Step 4: Simplify right side
   12,642.92x = 123,069,109.97
5. Step 5: Solve for x
   x = 123,069,109.97/12,642.92
6. Step 6: Final answer
   x = 9,734.23