Finding the Fourth Proportional to 12,357.94, 17,055.17 and 7,053.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,357.94 : 17,055.17 = 7,053.55 : x
2. Step 2: Convert to fraction form
   12,357.94/17,055.17 = 7,053.55/x
3. Step 3: Cross multiply
   12,357.94x = 17,055.17 × 7,053.55
4. Step 4: Simplify right side
   12,357.94x = 120,299,494.35
5. Step 5: Solve for x
   x = 120,299,494.35/12,357.94
6. Step 6: Final answer
   x = 9,734.59