Finding the Fourth Proportional to 12,642.30, 17,446.36 and 7,053.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,642.30 : 17,446.36 = 7,053.30 : x
2. Step 2: Convert to fraction form
   12,642.30/17,446.36 = 7,053.30/x
3. Step 3: Cross multiply
   12,642.30x = 17,446.36 × 7,053.30
4. Step 4: Simplify right side
   12,642.30x = 123,054,410.99
5. Step 5: Solve for x
   x = 123,054,410.99/12,642.30
6. Step 6: Final answer
   x = 9,733.55