Finding the Fourth Proportional to 12,357.97, 17,055.21 and 7,053.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,357.97 : 17,055.21 = 7,053.58 : x
2. Step 2: Convert to fraction form
   12,357.97/17,055.21 = 7,053.58/x
3. Step 3: Cross multiply
   12,357.97x = 17,055.21 × 7,053.58
4. Step 4: Simplify right side
   12,357.97x = 120,300,288.15
5. Step 5: Solve for x
   x = 120,300,288.15/12,357.97
6. Step 6: Final answer
   x = 9,734.63